Inula Combo #1 by Genestra Brands Seroyal

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Each 20 drop (1 ml) serving contains: Elecampane root 1:1 extract (inula helenium) 0.33 ml • Mullein aerial parts 1:1 extract (verbascum thapsus) 0.28 ml • Grindelia camporum flower 1:1 extract 0.14 ml • Grindelia squarrosa flower 1:1 extract 0.19 ml • Ginger root 1:1 extract (zinger officinale) 0.04 ml • Cayenne fruit 1:10 extract (capsicum annuum) 0.02 ml.

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Effectiveness view details

Below is general information about the effectiveness of the known ingredients contained in the product Inula Combo #1. Some ingredients may not be listed. This information does NOT represent a recommendation for or a test of this specific product as a whole.

CAPSICUM (Cayenne)

LIKELY EFFECTIVE

Diabetic neuropathy. Applying a specific prescription patch containing capsaicin 8% or a specific cream containing capsaicin 0.075% can reduce pain in diabetic neuropathy. Details: Clinical research has evaluated the use of a specific patch (Qutenza, NeurogesX Inc.) containing capsaicin 8%, which is approved as a prescription medication by the US Food and Drug Administration (FDA) for the treatment of diabetic peripheral neuropathy. The research in this population shows that a single application of the patch on the painful parts of the feet for 30-90 minutes following pretreatment with topical anesthetics reduces pain for up to 12 weeks when compared with placebo (40719,96453). Patients using the patch experience reduced sleep interference and an average 28% reduction in pain, compared with a 21% reduction with placebo. Additionally, 50% of patients receiving the patch experience pain relief within 19 days, compared to 72 days for those receiving placebo (96453). A meta-analysis of the available clinical research for diabetic peripheral neuropathy found that one-time application of this patch is equally effective to duloxetine 20-120 mg daily, pregabalin 75-600 mg daily, and gabapentin 300-3600 mg daily in producing a 30% or 50% pain reduction. The dose of oral medication used in the evaluated studies did not impact the comparative efficacy of the capsaicin patch (96450). Other clinical research shows that applying cream containing capsaicin 0.075% four times daily for 8 weeks reduces pain intensity when compared with placebo in patients with diabetic peripheral neuropathy (40547,40592,40607). A meta-analysis of clinical research shows that applying cream containing capsaicin 0.075% reduces pain similarly to 5% lidocaine-medicated plaster (40674). Topical cream containing capsaicin 0.075% (Zostrix-HP, Link Medical Products Pty Ltd.) is FDA-approved as an over-the-counter (OTC) medication for this indication (272). However, applying a capsaicin lotion less frequently or with a lower concentration of capsaicin does not seem to be beneficial. A small clinical study in patients with diabetic neuropathy shows that applying a specific lotion (Capsika-75 lotion, Bangkok Drug Company) containing capsaicin 0.075% three times daily for 8 weeks improves pain to a similar degree as a placebo lotion (102277). This study was limited by a high dropout rate, high placebo effect, and poor adherence to therapy. Furthermore, cream or gel (such as Capsika-25 gel, Bangkok Drug Company) containing lower amounts of capsaicin do not appear to be effective for reducing diabetic peripheral neuropathy pain (92984).
Pain (chronic). Topical cream containing capsaicin can reduce chronic pain associated with various conditions. Topical capsaicin is FDA-approved for this use. Details: Several clinical studies show that topically applying cream containing capsaicin, the active capsicum constituent, 0.05% to 0.075% temporarily relieves chronic pain from rheumatoid arthritis, osteoarthritis, back pain, jaw pain, psoriasis, and neuropathic conditions (12401,17701). Capsaicin, used in topical preparations, is FDA-approved for these uses (272). It can take up to 14 days for the full analgesic effect. For neuropathic pain, the number needed to treat using capsaicin 0.075% for eight weeks is 5.7 (12401). For musculoskeletal pain, for every 8.1 patients treated with capsaicin 0.025%, 1 patient would achieve at least a 50% reduction in pain (12401). Also, applying capsaicin 0.05% (Finalgon CPD Warmecreme) three times daily for 21 days seems to cause a 49% reduction in chronic soft tissue pain when compared with placebo (17701).
Postherpetic neuralgia. Applying a specific prescription patch containing capsaicin can reduce postherpetic neuralgia pain, especially in patients with the lowest pain scores. Details: Clinical research has evaluated the use of a specific patch (Qutenza, NeurogesX Inc.) containing capsaicin 8%, which is approved as a prescription medication by the US Food and Drug Administration (FDA) for the treatment of postherpetic neuralgia. Research in this population shows that applying a single patch for 60-90 minutes reduces average pain over 24 hours by 27% to 37% for up to 12 weeks, compared to only 4.4% to 26% in patients in the control group (40659,40679,40686,40691,40719,40728,40800,92985,96451,96452). The number needed to treat to achieve at least a 30% or 50% reduction in pain intensity is 10 and 12, respectively; the number needed to treat to achieve an additional beneficial outcome over placebo at 8 weeks and 12 weeks is 9 and 7, respectively (40800,96451). The pain reduction with this patch has an onset of a few days after treatment and the effect lasts for about 5 months (92986). However, some evidence shows that the reduction in pain is only significant for patients who have had postherpetic neuralgia for at least 6 months (40686). Additionally, the reduction in pain and duration of response appears to be greatest for patients with lower pain scores and low sensitivity to light touch at baseline, as well as patients not using concomitant systemic neuropathic pain medications, whereas patients with high pain scores, high sensitivity to touch, or those using systemic neuropathic pain medications experience the smallest and least sustained reduction in pain (40728,96458). Also, other evidence suggests that this patch may be less effective at relieving postherpetic neuralgia when compared with 5% lidocaine-medicated plaster (40688).

POSSIBLY EFFECTIVE

Back pain. Topical capsicum or capsaicin seems to be beneficial for reducing back pain. Details: A meta-analysis of generally low-quality clinical research, as well as individual studies, show that applying a capsicum-containing plaster providing 11 mg of capsaicin per plaster or 22 mcg of capsaicin per square centimeter of plaster to the back once daily in the morning for 4-8 hours reduces low back pain when compared with placebo (15259,15260,15261). Applying capsaicin 0.05% (Finalgon CPD Warmecreme) three times daily for 21 days seems to cause a 58% reduction in low back pain when compared with placebo (17701). Also, in a mixed group of patients with acute back or neck pain, a large clinical trial shows that four topical applications with a gel containing capsaicin 0.075% with diclofenac 2% every 12 hours modestly reduces pain on motion when compared with diclofenac alone or placebo. The number of patients with at least a 50% reduction in pain from baseline was modestly higher. Capsaicin 0.075% was similarly effective alone and when combined with diclofenac 2% (105202). However, only about half of the patients in this study had back pain.
Cluster headache. Intranasal capsaicin seems to be beneficial for preventing cluster headaches. Its effect in the treatment of cluster headache is unclear. Details: Some clinical research shows that using the capsicum constituent capsaicin intranasally reduces the frequency of episodic or chronic cluster headache attacks (14323,14351,14352,14358). Capsaicin suspensions of 0.1 mL of a 10 mM suspension, providing 300 mcg/day of capsaicin, has been applied to the ipsilateral nostril. Applications are continued once daily until a burning sensation is no longer experienced (14351,14358). Intranasal application of capsaicin 0.025% (Zostrix, Rodlen Laboratories) might also decrease symptom severity during an acute cluster headache attack. Clinical research shows that daily treatment for 7 days decreases symptom severity over the following week (14353). Ipsilateral, or same side, nostril application of capsaicin appears to be more effective than contralateral application (14351). Due to severe pain associated with intranasal capsaicin administration, pretreatment with intranasal local anesthetic is usually used.
Nonallergic rhinitis. Intranasal capsaicin in a dose of at least 0.1 mM seems to improve symptoms of nonallergic rhinitis. It is unclear if lower doses of capsaicin are beneficial. Details: Clinical research shows that repeated intranasal in-clinic treatments with capsaicin, the active capsicum constituent, or with capsicum oleoresin, over a period of one to three days, can significantly decrease symptoms of non-allergic, non-infectious perennial rhinitis symptoms (14328,14357,15016,40595,105204,105205). A decrease of symptoms has been observed for up to 6-9 months following these treatments (14328,14357). The following doses have been used: capsaicin 0.15 mg per dose for up to 7 doses over a 14-day period (14328), capsaicin 0.0033 mol once weekly for 5 weeks (14357), capsaicin 15 mcg/0.1 mL applied three times daily for 3 days (15016), and capsaicin 1-4 mcg per puff, applied 3 times in each nostril daily for 3 days (40595). Due to severe pain associated with intranasal capsaicin administration, pretreatment with intranasal local anesthetic is usually used. Personal use of an intranasal spray with a lower dose of capsaicin might also be effective. Clinical research shows that two 0.4 mL puffs with an intranasal spray in each nostril daily for 4 weeks providing capsaicin 0.01 mM, but not 0.001 mM, is more effective than placebo for reducing symptoms of idiopathic rhinitis. This benefit is maintained for an additional 8 weeks. This protocol was at least as effective as receiving five repeated hourly intranasal spray treatments in hospital with capsaicin 0.1 mM (105204).
Osteoarthritis. The American College of Rheumatology (ACR) conditionally recommends topical capsaicin for knee osteoarthritis, but not for hip or hand osteoarthritis. Details: A meta-analysis of 4 preliminary clinical trials shows that using topical capsaicin 0.025% four times daily has modest benefit for osteoarthritis when compared with placebo. Using capsaicin 0.0125% doesn't seem to be effective (102408). The American College of Rheumatology (ACR) conditionally recommends topical capsaicin for knee osteoarthritis. However, it does not recommend its use for hip osteoarthritis due to the depth of the joint beneath the skin surface, nor for hand osteoarthritis, due to the risk for contamination of the eye (102114).
Pain (acute). Topical capsicum seems to be beneficial for reducing acute pain due to trauma. Details: Clinical research in patients with trauma-related acute pain shows that topical application with a gel (Sanli Gel) containing capsaicin 0.05% three times daily for 3 days reduces pain by at least 50% in 87% of patients, compared with 63% of those using a piroxicam gel 0.5% (Felden). There was also a significantly greater number of patients with a final pain score of 4 or less. In the capsaicin group, only 12% of patients did not achieve either of these endpoints, compared with 31% in the group receiving piroxicam (105197).
Postoperative nausea and vomiting (PONV). Applying topical capsicum to acupoints seems to be beneficial for preventing PONV. Details: Clinical research shows that applying a capsicum-containing plaster to acupoints on the hand and forearm 30 minutes prior to anesthesia and leaving in place for 6-8 hours daily for up to 3 days after surgery reduces the incidence of PONV by about 29% to 36% when compared to control (40405,40483,40610). Plasters used in these studies included Sinsin PAS (Sinsin Pharm Co.), which is standardized to contain capsicum 345.8 mg and capsicum tincture 34.58 mg per sheet (40405,40610); and Johnson's Perforated Capsicum Plaster (Johnson & Johnson Ltd.), which is standardized to contain capsicum oleoresin 1% w/w (40483).
Postoperative pain. Applying topical capsicum-containing plaster to acupoints seems to be beneficial for reducing postoperative pain. It is unclear if a capsicum patch or capsaicin instillation prior to wound closure is beneficial for reducing postoperative pain. Details: Some clinical research shows that applying a capsicum-containing plaster to acupoints on the hands or near the knees of adults or children 30 minutes prior to anesthesia, and leaving in place for 6-8 hours daily for up to 3 days after surgery, reduces the amount of rescue analgesics needed by 29% to 39% within the first 24 hours and by 16% to 19% within the first 48 hours when compared to control (40405,40483,40520,40524,40610). The capsicum-containing plaster used in these studies (Sinsin PAS, Sinsin Pharm Co.) is standardized to contain capsicum 345.8 mg and capsicum tincture 34.58 mg per sheet (40520,40610). Other preliminary clinical research shows that applying a single patch containing the capsicum constituent capsaicin 8% (Qutenza, NeurogesX Inc.) for 30-60 minutes leads to an improvement in overall health status and an average 22% reduction in pain that lasts up to 12 weeks in patients with postoperative and posttraumatic neuropathic pain. Patches were applied to various parts of the body, including the legs, torso, feet, hands, arms, head, and neck, and the reduction in pain continued with the use of a second and third patch application. The validity of these findings is limited by the lack of a control group (96452). Other clinical evidence suggests that instilling capsaicin 15 mg during surgery immediately prior to wound closure reduces the need for pain medication for up to 2 weeks postoperatively when compared with placebo (40741).

INSUFFICIENT RELIABLE EVIDENCE to RATE

Allergic rhinitis (hay fever). It is unclear if intranasal capsaicin is beneficial for preventing allergic rhinitis symptoms. Details: Preliminary clinical research shows that intranasal treatment with cotton wads soaked in the active capsicum constituent capsaicin 30 mcM, applied for 15 minutes and repeated over two days, reduces the severity of experimentally-induced allergic rhinitis. The severity of symptoms seems to be reduced for up to 2 months after treatment (14324). However, contradictory research shows that patients with allergic rhinitis caused by house dust mites do not have significantly improved symptoms after using a capsaicin solution providing 0.15 mg/dose for up to 7 doses over a 14-day period when compared with placebo (14360).
Amyotrophic lateral sclerosis (ALS, Lou Gehrig's disease). Although there is interest in using oral capsicum for ALS, there is insufficient reliable information about the clinical effects of capsicum for this condition.
Athletic performance. It is unclear if oral capsaicin is beneficial for improving athletic performance; the available research is limited to small, conflicting studies. Details: Several small clinical studies in physically active young adults show that taking capsaicin might improve some measures of athletic performance, but results are mixed overall (99409,99410,102276,105191,105198,105200). A meta-analysis of these and several other small clinical studies shows that taking the capsicum constituents capsaicin or capsiate 45 minutes before exercise improves measures of muscular endurance but does not improve aerobic endurance when compared with placebo. Doses of the capsicum constituents ranged from 1.2-24 mg, with most studies assessing a single 12 mg dose (111515). The included studies have a number of methodological problems that limit the validity of the findings, such as a small sample size, short study duration, and insufficient blinding. Also, most of the study participants were male. Other small clinical studies not included in the meta-analysis also show conflicting results. One small clinical study in untrained young adults undergoing resistance training shows that taking capsiate, a capsaicin analog, 6 mg orally twice daily for 6 weeks improves upper body, but not lower body, weightlifting performance when compared with placebo (109024). However, another small clinical trial in experienced male athletes shows that taking cayenne (GNC Nature's Fingerprint Cayenne Herbal Supplement) 3 grams, providing capsaicin 25.8 mg, daily for 7 days does not improve sprint time, rate of perceived exertion, or muscle soreness over three days when compared with placebo (105206). Capsicum has also been evaluated in combination with other ingredients. One small clinical study in untrained males shows that taking a supplement containing capsicum extract 66.7 mg, caffeine 400 mg, black pepper extract 10 mg, and niacin 40 mg prior to exercising does not improve strength, time to exhaustion, or maximal oxygen consumption when compared with placebo (37873).
Burning mouth syndrome. It is unclear if applying topical capsaicin in the mouth is beneficial for burning mouth syndrome. Details: Preliminary clinical studies show that using 15 mL of a mouth rinse containing the active capsicum constituent capsaicin 0.02% for 30 seconds daily for 7-21 days modestly decreases burning discomfort when compared to baseline in patients with burning mouth syndrome (92991,105195). Other preliminary clinical research shows that applying 0.5 mL of a gel containing capsaicin 0.01% or 0.025% to the tongue three times daily for 14 days modestly reduces pain when compared to baseline in patients with burning mouth syndrome. The gel is spread with a cotton swab, and no food or drink is consumed for 30 minutes after application (96456). The validity of these findings is limited by the lack of a control group, the small number of patients, and occasionally unclear statistical comparisons.
Cancer. It is unclear if eating more chili is beneficial for preventing mortality due to cancer. Details: Population research has found that consuming chili more than four times weekly is not associated with a reduced odds of cancer mortality (105208). Also, other population research has found that any consumption of hot red chili peppers is not associated with a reduced odds of mortality related to cancer (105210).
Cannabinoid hyperemesis syndrome (CHS). Preliminary clinical research suggests that topical capsaicin might be beneficial for reducing symptoms of CHS. Details: One small clinical study in adults presenting to an emergency department (ED) with CHS shows that applying 5 grams of a cream containing capsaicin 0.1% to the abdomen modestly reduces nausea severity at 60 minutes, but not 30 minutes, when compared with a placebo cream. Nausea was completely resolved in 29% of patients, compared with 0% of those using the placebo cream. However, there was no difference in vomiting at 30 or 120 minutes (105193). This study may not have been adequately powered to detect a difference in some of these outcomes. A meta-analysis of two small, low-quality studies involving the topical use of capsaicin on the abdomen, chest, and possibly back, shows that the mean time to resolution of symptoms was 326 minutes and the mean length of stay in the emergency department was 379 minutes. However, it is unclear how these times compare to the use of placebo or standard antiemetics. This study also conducted a systematic review of the available literature, which indicates that the creams most commonly used in research provide 0.025% to 0.1% capsaicin (105201). Two low-quality, retrospective reviews also suggest that capsaicin cream may be beneficial for CHS. A retrospective review of patients in the ED with CHS has found that applying capsaicin cream 0.025% is associated with a 39% shorter time to discharge when compared with control. Patients treated with capsaicin also required fewer additional rescue treatments when compared with control (109021). Another retrospective review of patients in the ED with CHS also suggests that capsaicin cream 0.025% modestly reduces abdominal pain when compared with baseline. However, 47% and 28% of patients, respectively, received additional antiemetics or an opioid after the use of the cream (105345).
Cardiovascular disease (CVD). It is unclear if eating more chili is beneficial for preventing mortality due to CVD. Details: Population research has found that consuming chili more than four times weekly is associated with a 34% reduced odds of CVD mortality when compared with never or rarely consuming chili, as well as 44% and 61% reduced odds of ischemic heart disease and cerebrovascular death, respectively (105208). Other population research has found that consumption of hot red chili peppers is not associated with a reduced odds of mortality related to CVD when compared with not eating hot red chili peppers (105210).
Diabetes. It is unclear if oral capsaicin is beneficial for gestational diabetes. Details: Preliminary clinical research shows that taking chili powder containing capsaicin 5 mg daily for 4 weeks modestly reduces total cholesterol levels and reduces postprandial blood glucose levels by an average of 36 mg/dL and postprandial insulin levels by an average of 14 IU/L in patients with gestational diabetes. Compared to a placebo group, these changes are significant. However, capsaicin intake does not alter fasting plasma glucose or insulin levels (96457).
Dry skin. It is unclear if oral capsicum is beneficial for dry skin. Details: Preliminary clinical research in adult females with low skin moisture shows that taking paprika oil extract 400 mg, standardized to include 9 mg of xanthophyll, orally daily for 4 weeks improves skin moisture and viscoelasticity scores, but not the number of wrinkles, when compared with control (109026).
Dyslipidemia. It is unclear if oral capsicum is beneficial for reducing lipid levels. Details: A meta-analysis of three or four mainly small clinical trials in healthy adults shows that taking capsicum does not improve levels of triglycerides, total cholesterol, or high-density lipoprotein (HDL) cholesterol when compared with no treatment or placebo. However, there was a small to moderate effect on levels of low-density lipoprotein (LDL) cholesterol. Freshly chopped chili or fermented red pepper were studied for 4 and 12 weeks, respectively (105194). It is unclear if capsicum can lower lipid levels in patients with dyslipidemia or hyperlipidemia.
Dyspepsia. It is unclear if oral capsicum is beneficial for dyspepsia. Details: Preliminary clinical research shows that taking red pepper powder 2.5 grams daily in three divided doses for 5 weeks reduces symptoms of functional dyspepsia when compared with placebo. However, in some patients, there seems to be a worsening of symptoms prior to any improvement (12410).
Fibromyalgia. It is unclear if oral capsicum is beneficial for fibromyalgia. Details: Preliminary clinical research shows that applying cream containing the active capsicum constituent capsaicin 0.025% four times daily to tender points for 4 weeks reduces localized tenderness in patients with fibromyalgia (7038). Other preliminary clinical research shows that applying capsaicin 0.075% cream (Sensedol) three times daily to tender points for 6 weeks in addition to standard therapy increases the pain threshold when compared with standard therapy in patients with severe fibromyalgia (92979). However, capsaicin does not appear to reduce overall pain or improve physical function in patients with fibromyalgia (7038,92979). Also, the long-term effects of capsaicin on fibromyalgia-related pain are unclear.
Gastroesophageal reflux disease (GERD). Although there is interest in using oral capsicum for GERD, there is insufficient reliable information about the clinical effects of capsicum for this condition.
HIV/AIDS-related peripheral neuropathy. It is unclear if topical capsaicin is beneficial for this condition. Details: There is conflicting evidence regarding the effects of Qutenza (NeurogesX Inc.), which contains the active constituent of capsicum, capsaicin 8%. Although some research shows it reduces pain in patients with HIV and peripheral neuropathy (22395), other research shows no significant benefit (40746). A meta-analysis of results from both of these studies shows that applying a single capsaicin 8% patch for 30-90 minutes reduces pain intensity by at least 30% in about 30% more patients when compared to control (40800). Additional meta-analyses of the results from these two studies suggests that pain reduction with capsaicin begins a few days after treatment and lasts for about 5 months, with a number needed to treat of 11 to achieve at least a 30% reduction in pain intensity (92986,96451). Reduction in pain and duration of response appears to be greatest for females with lower pain scores at baseline, whereas males with high pain scores at baseline experience the smallest and least sustained reduction in pain (96458). Some research has also evaluated topical capsaicin 0.075%. One small clinical study shows that applying this cream does not relieve symptoms of HIV-associated peripheral neuropathy when compared with placebo (3891).
Hypertension. It is unclear if oral capsicum is beneficial for lowering blood pressure. Details: Two meta-analyses of small clinical trials show that taking capsicum as freshly chopped chili, fermented red pepper, red pepper capsules, or capsinoid capsules orally daily for 4-12 weeks does not reduce systolic or diastolic blood pressure when compared with control. However, most subjects included in these clinical trials did not have hypertension (105194,109025).
Intermetatarsal neuroma. It is unclear if injecting capsaicin into the third intermetatarsal space is beneficial for intermetatarsal neuroma. Details: Clinical research in adults with intermetatarsal neuroma shows that a single injection of capsaicin 0.1 mg into the third intermetatarsal space 5 minutes after administration of 2 mL of lidocaine 2% with epinephrine leads to a modest reduction in pain at weeks 1 and 4, but not weeks 2 and 3, when compared with placebo. Capsaicin also reduces the extent to which pain interferes with walking and mood, but not with work, sleep, relationships, or general activity (96454).
Irritable bowel syndrome (IBS). It is unclear if oral capsicum is beneficial for IBS. Details: Preliminary clinical research shows that taking ground guajillo chili 1 gram, containing capsaicin 0.112%, with each meal for 7 days does not reduce symptoms of IBS (12403). A small clinical study shows that taking chili (Nguan Soon Co., Ltd.) 2.1 grams, providing 2.5 mg capsaicin, daily before meals for 6 weeks does not improve abdominal burning, fecal urgency, or abdominal pain or bloating after a spicy meal. However, there was a modest reduction in abdominal burning after a spicy meal (105207). This study may not have been adequately powered to detect a difference in some of these outcomes.
Laryngitis. Although there is interest in gargling with capsicum for laryngitis, there is insufficient reliable information about the clinical effects of capsicum for this condition.
Motion sickness. Although there is interest in oral capsicum for motion sickness, there is insufficient reliable information about the clinical effects of capsicum for this condition.
Myofascial pain syndrome. It is unclear if topical capsaicin is beneficial for myofascial pain syndrome. Details: Preliminary clinical research shows that applying a specific capsaicin cream (Dipental Cream, Dalim BioTech) containing capsaicin 0.25 mg/gram along with a ketoprofen 30 mg patch (KetotopVRPlaster, Pacific Pharma) to the trapezius does not reduce pain when compared with a ketoprofen patch alone in patients with myofascial pain (92983).
Neck pain. It is unclear if topical capsaicin is beneficial for neck pain. Details: In a group of patients with acute back or neck pain, a large clinical trial shows that four topical applications with a gel containing capsaicin 0.075% with diclofenac 2% every 12 hours modestly reduces pain on motion when compared with diclofenac alone or placebo. The number of patients with at least a 50% reduction in pain from baseline was modestly higher. Capsaicin 0.075% was similarly effective alone or when combined with diclofenac 2% (105202). However, only about half of the patients in this study had neck pain.
Neuropathic pain. It is unclear if topical capsicum is beneficial for neuropathic pain. Details: A very small study in adults with neuropathic pain secondary to spinal cord injury shows that applying a patch containing the capsicum constituent capsaicin 8% for 60 minutes daily to the affected area for 12 weeks reduces pain at weeks 2 and 4 and improves mobility, but not quality of life, for up to 12 weeks when compared with placebo (111517). The validity of these findings is limited by insufficient blinding and the small sample size.
Obesity. It is unclear if oral capsicum is beneficial for obesity. Details: A meta-analysis of 3-5 small clinical trials shows that taking capsicum does not reduce body weight, body fat, or body mass index (BMI) in individuals with a BMI of at least 25 kg/m2 when compared with placebo or no treatment. Freshly chopped chili, fermented red pepper, or capsicum constituents were studied for 4-12 weeks (105194). In one clinical trial included in the analysis, taking capsinoids 3 mg twice daily 30 minutes prior to eating for 12 weeks reduced abdominal fat by about 1%, but did not significantly reduce body weight, when compared with placebo (40599). In overweight individuals, one small clinical trial shows that taking a specific chili extract 200 mg, formulated with fenugreek dietary fiber for sustained release (Capsifen, Akay Natural Ingredients), providing capsaicinoids 4 mg daily for 28 days reduces body weight and BMI by about 2% when compared with placebo. There was no effect on blood pressure (105196). Capsicum has also been evaluated in combination with other ingredients, with some evidence of benefit. One study evaluated a combination product (Prograde Metabolism) containing capsicum extract (Capsimax, OmniActive Health Technologies), raspberry ketone (Razberi K, Integrity Nutraceuticals), caffeine, garlic root extract, ginger root extract, bitter orange fruit (Advantra Z, Nutratech Inc), L-theanine, and black pepper fruit extract (Biperine, Sabinsa Corporation) twice daily for 8 weeks (40802).
Overall mortality. Eating chili may be beneficial for preventing mortality. It is unclear if taking capsicum supplements is beneficial for preventing overall mortality. Details: Population research has found that consuming chili is associated with a reduced risk of overall mortality. In one study, eating chili more than four times weekly was associated with a 23% reduced odds of overall mortality when compared with never or rarely consuming chili (105208). Other population research has found that any consumption of hot red chili peppers is associated with a 13% reduced odds of mortality when compared with not eating these peppers (105210). Also, eating spicy foods at least once each week, consisting mainly of fresh chili pepper, dried chili pepper, chili sauce, or chili oil, was associated with at least a 10% reduced risk of death when compared with eating these foods less than once a week (105211).
Peptic ulcers. It is unclear if oral capsicum is beneficial for peptic ulcers. Details: Population research has found that eating capsicum fruit (chili) an average of 24 times per month is associated with a reduced likelihood of having an ulcer when compared with eating chili an average of 8 times per month. This applies to chili in the form of chili powder, chili sauce, curry powder, and other chili-containing foods (12053). However, clinical research shows that consuming chili peppers 1 gram three times daily for 4 weeks does not improve duodenal ulcer healing when compared to control (40828).
Peripheral neuropathy. Preliminary clinical research suggests that topical capsaicin might be beneficial for reducing peripheral neuropathy pain. Details: Preliminary clinical research shows that applying patches containing the capsicum constituent capsaicin 8% (Qutenza, NeurogesX Inc.) reduces pain in people with non-diabetic peripheral neuropathy (96452,111516). Up to four patches, applied to different painful areas, are used at one time and are left in place for 30 minutes on the feet, or 60 minutes on other parts of the body such as the legs, torso, hands, arms, head, or neck (96452). After an interval of at least 90 days, treatment can be repeated, with new patches applied for 30-60 minutes (99407). There is an average 27% reduction in pain when compared to baseline, lasting up to 12 weeks (96452). Another similar study reported a decrease of 1 point, on a 10-point pain scale, in the typical daily pain intensity (99407). The validity of these findings is limited by methodological problems, including the lack of control groups. Further research shows that using a single application of up to four capsaicin 8% patches for 30-60 minutes, or taking pregabalin orally, 150-600 mg in 2-3 divided doses daily for 8 weeks, reduces the intensity and area of dynamic mechanical allodynia (DMA, pain evoked by light brushing of the skin) in people with non-diabetic peripheral neuropathy. Complete resolution of DMA occurred in 24% of people using the patches, and 12% of those taking pregabalin (99408). The validity of these findings is limited by methodological problems, including a lack of blinding.
Prurigo nodularis. It is unclear if topical capsaicin is beneficial for prurigo nodularis. Details: Preliminary clinical research shows that applying a cream containing the active capsicum constituent, capsaicin 0.025% to 0.3%, 4-6 times daily improves burning sensations, erythema, pruritus, and healing of skin lesions over a period of 2 weeks to 33 months when compared to baseline. Symptoms may return after discontinuation of therapy (10650).
Sinonasal polyposis. It is unclear if intranasal capsaicin is beneficial for sinonasal polyposis. Details: Preliminary clinical research in patients with severe sinonasal polyposis shows that intranasal application of 0.5 mL of a 30 mmol/L capsaicin solution to each nostril for 3 days, followed by 0.5 mL of a 100 mmol/L capsaicin solution for 2 days, can cause significant subjective improvement in symptoms as well as objective improvement in nose/sinus air volume and endoscopy scores; however, capsaicin does not seem to significantly affect eosinophil cationic protein levels (14359).
Swallowing dysfunction. Preliminary research shows that oral capsaicin might be beneficial for improving swallowing ability. Details: Preliminary clinical research shows that elderly patients at risk for aspiration pneumonia due to swallowing dysfunction have improved swallowing reflexes after dissolving a lozenge containing capsaicin 1.5 mcg in the mouth before each meal when compared with using a placebo lozenge (13100). Preliminary clinical research also shows that capsaicin may be beneficial in patients with swallowing dysfunction due to stroke (102278,105192). One study shows that taking 1 mL of nectar containing capsaicin 150 mcM/L with each meal daily for 3 weeks, in addition to thermal tactile stimulation, improves eating and swallowing when compared with using thermal tactile stimulation and placebo nectar (102278). Another study shows that 20 minutes of stimulation with an ice swab containing capsaicin 0.15 mM before lunch and dinner daily for three weeks modestly improves the ability to swallow water when compared with ice stimulation alone. After treatment, approximately 70% of those using the capsaicin ice were able to drink the water without choking, compared with only 33% in those using ice alone (105192). Capsaicin solution has also been administered by nebulizer. A clinical study in patients with swallowing dysfunction secondary to hemorrhagic stroke shows that inhaling capsaicin solution twice daily for one week reduces the incidence of post-swallow residue and pulmonary infection and increases number of coughs in response to capsaicin compared with placebo. However, treatment with nebulized capsaicin does not reduce the number of patients with swallow or cough reflexes compared with control (111518). More evidence is needed to rate capsicum for these uses.

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ELECAMPANE

INSUFFICIENT RELIABLE EVIDENCE to RATE

Acne. Topical elecampane has only been evaluated in combination with other ingredients; its effect when used alone is unclear. Details: A small clinical study in young adults with facial acne shows that application of a cream containing elecampane flower and leaf 0.8%, red soapwort root 0.32%, and black nightshade leaf 0.8%, 2 to 3 times daily for 6 weeks, reduces acne severity index scores by 55%, 85%, and 91% from baseline at 2, 5, and 6 weeks, respectively, compared with no change in the placebo group (105733). The poor study methodology and lack of statistical comparison to the placebo group limit the validity of these findings.
Cough. Oral elecampane has only been evaluated in combination with other ingredients; its effect when used alone is unclear. Details: A small clinical study in children 3-6 years of age with acute cough shows that taking a specific syrup (KalobaTUSS, Schwabe Pharma Italia Srl) based on acacia honey with extracts of elecampane, mallow, great plantain, and sandy everlasting, as 5 mL four times daily for 8 days, produces rapid and sustained reductions in both nighttime and daytime cough scores when compared with placebo (105734). More evidence is needed to rate elecampane for these uses.

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GINGER

POSSIBLY EFFECTIVE

Dysmenorrhea. In people with dysmenorrhea, taking oral ginger seems to reduce pain. Clinical research shows that ginger might be comparable to ibuprofen or mefenamic acid. In addition, taking ginger seems to be beneficial when used as an adjunct to mefenamic acid 250 mg twice daily. Details: Clinical research in individuals at least 15 years of age shows that ginger can reduce pain from dysmenorrhea. Clinical studies show that taking ginger powder 500-2000 mg daily usually for the first 3-4 days of a menstrual cycle modestly decreases pain severity by an average of 2.3-2.7 points on a 10-point scale when compared to control groups (89889,89899,91139,91892,96255,106077). However, a meta-analysis of clinical research shows that taking ginger does not reduce pain duration when compared with placebo (106077). Clinical research also shows that ginger might be as effective as some anti-inflammatory agents. Taking a specific ginger extract (Zintoma, Goldaru) 250 mg four times daily for 3 days at the beginning of the menstrual period or until pain relief improves symptoms similarly to ibuprofen or mefenamic acid (17931,96259,106077). Also, taking a ginger extract 200 mg four times daily for 3-4 days at the beginning of pain is equally effective to taking Novafen, a combination of acetaminophen, caffeine, and ibuprofen (99444). Ginger also seems to improve pain when given as an adjunct to anti-inflammatory agents. A small clinical study in young females with dysmenorrhea shows that adding ginger (Vomigone, Dineh Co.) 500 mg daily to mefenamic acid 250 mg twice daily for 5 days further reduces pain when compared with taking mefenamic acid alone (102464).
Osteoarthritis. Most clinical research shows that taking ginger extract by mouth improves pain in some patients with osteoarthritis. Topical ginger, on the other hand, has not shown benefit for knee osteoarthritis in low quality research. Details: Meta-analyses of clinical research show that taking ginger extract 500-1000 mg daily for 3-12 weeks can modestly improve pain when compared with placebo in some patients with osteoarthritis of the knee or hip (96253,103357). However, a meta-analysis of two clinical studies shows that taking ginger extract about 500 mg daily for 6 weeks does not have an effect on function (103357). Some clinical research has also compared ginger to conventional drug treatment. In one clinical trial, there was no significant difference between ginger extract 30 mg daily and ibuprofen 400 mg three times daily for one month in patients with osteoarthritis of the hip or knee (17930). However, taking a specific ginger extract (Eurovita Extract 33; EV ext-33) orally 170 mg three times daily for 3 weeks was significantly less effective than ibuprofen 400 mg three times daily for reducing pain (7048). Since ginger is thought to take several weeks for significant benefit, this trial might not have lasted long enough. Ginger has also been compared with diclofenac. When used orally as 1500 mg daily in two divided doses, ginger is less effective than oral diclofenac 100 mg daily in two divided doses, or the combination of ginger and diclofenac, for 12 weeks (89898). Various studies have evaluated formulations containing ginger with other ingredients. These combinations have all been shown to improve osteoarthritis pain, and in some cases, functionality. Studied formulations include ginger (Eurovita Extract 35; EV ext-35) 340 mg with glucosamine (Zinaxin glucosamine, Ferrosan AS) 1000 mg daily for 4 weeks, a ginger extract with an alpinia (Alpinia galanga) extract (Eurovita Extract 77; EV ext-77) 255 mg twice daily for 6 weeks, a ginger extract with curcuminoids, and extracts of devil's claw, Boswellia serrata, and celery (Tregocel) for 36 weeks, or Ayurvedic shunthi-guduchi formulations containing ginger, Indian gooseberry, and Tinospora cordifolia, either with or without Boswellia serrata (7084,18210,89557,106078). However, it's too early to know if the effects of these combination agents are associated with ginger or other ingredients in the formulations. Topical ginger, alone or in combination with other ingredients, has also been studied for knee osteoarthritis. Although a meta-analysis of two randomized clinical trials shows no evidence of benefit of topical ginger for pain and disability when compared with placebo or standard therapy (103357), some benefits have been shown in individual preliminary studies (20340,20341,89897,96668,97537,97542). These trials have used a specific gel containing ginger and plai 4% by weight (Plygersic gel, Thailand Institute of Scientific and Technological Research) 4 grams/day in four divided doses for 6 weeks (89897), an ointment composed of ginger, cinnamon, mastic (Saghez), and sesame oil twice daily for 6 weeks (20340), or one gram of ginger extract 5% (standardized to 11.18% of 6-gingerol) in a nanostructure lipid carrier three times daily for up to 12 weeks to the affected knee (96668,97537). Some studies have used ginger essential oil in a massage oil, alone or with sweet orange essential oil or standard therapy, twice weekly for 3 or 6 weeks (20341,97542).
Pregnancy-induced nausea and vomiting. Oral ginger seems to reduce the severity of nausea and vomiting in some people during pregnancy. Ginger seems to be more effective than placebo, comparable to vitamin B6 or dimenhydrinate, and less effective than metoclopramide. Details: Although most clinical studies are small and have methodological limitations, the available research shows that ginger is more effective than placebo, and comparable to vitamin B6 or dimenhydrinate (721,1922,5343,11346,13071,16306,20312,20315,90103,91201,102462). Although ginger is comparable to dimenhydrinate for reducing symptoms of morning sickness, it seems to take about 3 days to reduce vomiting episodes compared to 1 day with dimenhydrinate (16305). In addition, clinical research shows that ginger is less effective than metoclopramide at relieving nausea and vomiting associated with pregnancy (20315). Ginger doses of 500 to 2500 mg daily, divided into two to four daily doses for 3 days to 3 weeks, have been used in clinical research (721,5343,16305,16306,20312,20315,90103,91201). The American College of Obstetrics and Gynecology (ACOG) considers ginger capsules 250 mg 4 times daily a first-line nonpharmacological treatment option for pregnancy-induced nausea based on limited evidence. However, there is no evidence that ginger reduces vomiting (111601).

POSSIBLY INEFFECTIVE

Chemotherapy-induced nausea and vomiting (CINV). Most clinical research shows that oral ginger does not reduce acute or delayed CINV. The effect of ginger might depend on the dose, the other antiemetics used, or the specific chemotherapy regimen. Details: Most clinical research shows that taking ginger as adjunct to adequate antiemetic therapy does not reduce DELAYED CINV when compared with antiemetic therapy alone (20316,96260,89891,96675,97538,97541,101760,102461,113616). Clinical research from meta-analyses and most individual clinical studies also show that taking ginger 0.5-3.5 grams as an adjunct to standard antiemetic therapy does not reduce the incidence or severity of ACUTE CINV when compared with antiemetic therapy alone (89891,96675,101760,102461,102466,113616). However, conflicting results exist from some individual clinical studies (20316,102466). These individual studies evaluated powdered ginger root or liquid extract of ginger root 0.5-2 grams taken in two to four divided doses daily, starting on either the day of or 3 days before chemotherapy and continuing for 3-5 days after chemotherapy initiation (20316,102466). Also, one small study shows that ginger in doses of 1 gram or less for more than 3 days reduces the likelihood of acute vomiting by 60% (101760). More research is needed to confirm the efficacy of this lower dose. Reasons for the conflicting results are unclear, but several theories have been postulated. One theory is that ginger might help reduce CINV associated with some, but not all, chemotherapy regimens. One preliminary clinical study shows that ginger 500 mg twice daily for 3 days reduces vomiting in patients receiving cyclophosphamide and doxorubicin, but not in patients also receiving 5-fluorouracil or docetaxel (96251). However, since there is limited evidence supporting this theory, additional research is needed to confirm. Another theory is that ginger helps when used with certain antiemetic drugs, but not others. For example, ginger seems to help in cases when optimal antiemetic therapy, such as 5-HT3 receptor antagonists, is not available. Small clinical studies show that ginger reduces the severity of acute nausea when compared with prochlorperazine or metoclopramide, both of which are suboptimal antiemetic therapy for CINV (89891). Another small study shows that ginger is comparable to metoclopramide for improving delayed chemotherapy-induced nausea (13244). On the other hand, several studies show that taking ginger 0.5-2 grams daily along with antiemetic therapy that includes aprepitant does NOT improve acute or delayed CINV (20318,89891,96251,96675). In fact, one study found an association between concomitant use of ginger 2 grams daily with aprepitant and worsened severity of delayed nausea. Ginger is hypothesized to decrease the absorption of aprepitant and reduce its effectiveness for delayed nausea (20318,96675). However, this effect has not been replicated, and aprepitant serum levels were not measured to confirm this hypothesis. Finally, many of the studies showing a benefit of ginger for CINV when used as an adjunct to standard antiemetic therapy are considered to be methodologically flawed (20317,96252,96677). For instance, one study using powdered ginger root 1-2 grams daily during the first three days of chemotherapy in children and adults (20317) has been criticized for inaccurately representing data (89891). Other studies of ginger 500 mg twice daily for up to 10 days used questionable methods to measure outcomes and usually did not differentiate between acute and delayed CINV (96252,96677). Ginger essential oil aromatherapy has also been evaluated. One small study shows that using two drops of ginger essential oil on an aromatherapy necklace for 2 minutes daily for 5 days, starting on the first day of chemotherapy, reduces acute nausea, but not vomiting or delayed nausea, when compared with placebo in females with breast cancer taking standard antiemetics including granisetron, dexamethasone, and metoclopramide (96256).
Exercise-induced muscle soreness. Most research shows that oral ginger in single or multiple doses does not prevent or treat exercise-induced muscle soreness. Details: Two small studies in healthy adults show that single doses of ginger supplements do not seem to reduce muscle soreness from exercise. Taking capsules of ground ginger 2 grams, 30 minutes before a 30-minute cycling bout, or 24-48 hours after eccentric exercise, does not reduce muscle pain during exercise or within one hour of ingestion when compared with placebo (17932,17934). Taking multiple doses also does not seem to help. One small study in healthy adults shows that taking capsules with ginger powder 4 grams daily for 5 days before high-intensity eccentric exercise does not reduce muscle soreness over 4 days when compared with placebo (96258). Another small study in healthy adults shows that taking capsules of heated or raw ground ginger 2 grams daily for 8 days prior to eccentric exercise, and continuing supplementation for 3 more days, might modestly reduce muscle soreness 24 hours post-exercise, but not at later time points, when compared with placebo (17933,96258). Ginger has also been tested in combination with other ingredients. One small study in healthy adults shows that taking a specific combination product (ReWin(d), Natural Origins) containing a 4:3 ratio of ginger and annatto powder, 2 grams in divided doses daily for 4 weeks before eccentric exercise and continuing for 3 days after exercise, may modestly reduce muscle pain 48 hours after exercise but not at other time points (105057). This study was funded by the supplement manufacturer.
Motion sickness. Most research shows that oral ginger does not prevent or treat motion sickness. Details: Most clinical research shows that taking ginger 500-1000 mg up to 4 hours prior to travel does not prevent motion sickness (7624,7625,20330,20331). Some patients report subjective feelings of improvement, but in many studies objective measures did not significantly improve (7400). However, one clinical trial suggests that ginger is more effective than dimenhydrinate at reducing gastrointestinal distress associated with motion sickness (20332). Another clinical study seems to show that taking ginger 1-2 grams as a single dose reduces nausea severity and increases the latency before the onset of nausea caused by simulated motion sickness when compared to baseline (20333). The validity of this finding is limited by the lack of a comparator group.

INSUFFICIENT RELIABLE EVIDENCE to RATE

Acute respiratory distress syndrome (ARDS). Some small clinical studies show that giving ginger with tube feeds to hospitalized patients might reduce the duration of serious sequelae from ARDS. Details: A small clinical trial in adults with ARDS shows that administering ginger extract 120 mg in three divided doses daily via nasogastric tubing for 21 days increases the number of ventilator-free days and the amount of feeding tolerated and decreases the number of intensive care unit (ICU) days when compared with placebo. However, it does not seem to improve overall mortality (20343). Also, another small clinical study shows that adding ginger extract 120 mg to tube feeds in three divided doses daily for 8-21 days improves blood oxygen levels by 13% to 20%, as well as the ability of the lungs to expand by 17%, when compared with a coconut oil placebo. The duration of mechanical ventilation and stay in the ICU also improved. However, ginger does not affect other measurements of lung function or physical organ damage in these patients (89886).
Allergic rhinitis (hay fever). It is unclear if oral ginger is beneficial in allergic rhinitis. Details: A small clinical trial shows that taking ginger extract 500 mg daily for 6 weeks is as effective as loratadine 10 mg daily for reducing nasal symptoms of allergic rhinitis (103359).
Antiretroviral-induced nausea and vomiting. Oral ginger seems to improve nausea and vomiting in patients using antiretroviral agents. Details: A small clinical study in patients with HIV shows that taking ginger 0.5 grams twice daily, 30 minutes prior to each dose of antiretroviral for 14 days, reduces the relative likelihood of nausea and vomiting by about 63% and 79%, respectively, when compared with placebo (89887).
Asthma. Although there has been interest in using oral ginger for asthma, there is insufficient reliable information about the clinical effects of ginger for this condition.
Back pain. Although there has been interest in using oral ginger for back pain, there is insufficient reliable information about the clinical effects of ginger for this condition.
Burns. Although there has been interest in using topical ginger for burns, there is insufficient reliable information about the clinical effects of ginger for this condition.
Cancer-related anorexia. It is unclear if oral ginger improves appetite in people with cancer-related anorexia. Details: A small clinical study in patients with cancer-related anorexia and cachexia shows that taking a capsule containing ginger 1650 mg daily for 14 days improves nausea, appetite, reflux, dysmotility, and other gastrointestinal symptoms when compared to baseline (102460). The validity of these findings is limited by the lack of comparator group.
Chronic obstructive pulmonary disease (COPD). Oral ginger has only been evaluated in combination with other ingredients; its effect when used alone is unclear. Details: Clinical research shows that taking two capsules of a specific combination product (AKL1, AKL International Ltd.) containing ginkgo extract, ginger, and Picrorhiza kurroa twice daily for 8 weeks does not improve respiratory symptoms when compared with placebo in patients with COPD (89702). Another moderate-sized clinical study in adults with COPD shows that taking a combination product containing extracts of ginger, alpinia, cardamom, cinnamon, and saffron in honey 3 times daily for 8 weeks improves confidence in leaving home and the ratio of forced exploratory volume per second to forced vital capacity of the lungs (FEV1/FVC) when compared with placebo. However, the combination product does not improve most measures of respiratory function or symptoms such as cough, phlegm, chest tightness, dyspnea, reduced energy levels, sleeping disorders, or activity limitations when compared with placebo (111542). It is unclear if these effects are due to ginger, other ingredients, or the combination.
Colic. Although there has been interest in using oral ginger for colic, there is insufficient reliable information about the clinical effects of ginger for this condition.
Constipation. Although there has been interest in using oral ginger for constipation, there is insufficient reliable information about the clinical effects of ginger for this condition.
Coronavirus disease 2019 (COVID-19). It is unclear whether oral ginger is beneficial for patients with COVID-19. Details: Clinical research in adults hospitalized with asymptomatic COVID-19 infection shows that taking ginger 1.5 grams twice daily orally until hospital discharge reduces length of stay from around 8.5 days to 6 days, when compared with placebo. The strongest effect is seen in males over 60 years of age (110005). The relevance of these results is reduced by a lack of blinding, and the fact that the subjects were initially asymptomatic. The efficacy of ginger for treating COVID-19 has also been evaluated in combination with other ingredients. In adults with uncomplicated, moderate COVID-19, taking a combination of ginger, turmeric, ashwagandha, and boswellia (BV-4051, Artovid-20), 1776 mg twice daily orally for 14 days in addition to standard care and starting 48-96 hours after symptom onset, reduces the mean duration of symptoms from about 8 days to 7 days, when compared with placebo (109899). A small open-label study in adults with confirmed mild to moderate COVID-19 shows that taking ginger 1000 mg and ashwagandha 500 mg twice daily for 15 days, along with conventional therapy, leads to a 13.8-fold and 2.6-fold increase in the relative rate of clinical cure at 7 days and 15 days, respectively, when compared with conventional therapy alone. Taking this combination also appears to reduce time to recovery by around 6 days but does not improve the rate of negative COVID-19 tests, chest imaging findings, viral clearance, serum antibodies, or other measures of disease progression when compared with conventional therapy alone (112094). The validity of these findings is limited by a lack of blinding, and the study may have been inadequately powered to detect a difference between groups. Additionally, it is unclear if these effects are due to ginger, ashwagandha, or the combination.
Diabetes. Some preliminary clinical studies suggest that oral ginger might have a small beneficial effect on glycemic control in patients with type 2 diabetes or gestational diabetes. Details: Meta-analyses of several small clinical trials in adults with type 2 diabetes show that taking ginger 1200-3000 mg daily for 8-13 weeks reduces glycated hemoglobin (HbA1c) by around 0.6% to 1% and fasting blood glucose by 19-21 mg/dL when compared with placebo (96680,107898). Additionally, a small clinical study in adults with diabetes on hemodialysis for end stage renal disease shows that taking ginger powder 2000 mg daily for 8 weeks reduces fasting blood glucose and measures of insulin resistance, but not serum insulin levels, when compared with placebo (111543). In patients with gestational diabetes at weeks 24-28 of pregnancy, clinical research shows that taking ginger 1500 mg daily in three divided doses for 6 weeks reduces fasting blood glucose, insulin levels, and measures of insulin resistance by a small amount when compared with placebo, with no effect on postprandial glucose levels (103358).
Diarrhea. Although there has been interest in using oral ginger for various types of diarrhea, including cholera and acute bacterial dysentery, there is insufficient reliable information about the clinical effects of ginger for these conditions.
Dry mouth. It is unclear if rinsing the mouth with ginger extract is beneficial for dry mouth. Details: In patients with dry mouth related to type 2 diabetes, clinical research shows that use of a ginger extract 25% mouthwash 20 mL three times daily for 14 days modestly reduces symptoms of dry mouth when compared with rinsing with a saline control mouthwash (106068). Although this study was indicated as being triple-blind, it is unclear how the taste of ginger was masked.
Dyspepsia. It is unclear if oral ginger is beneficial for dyspepsia. Details: In patients with dyspepsia, a small clinical trial shows that a single dose of ginger root powder 1.2 grams, taken 1 hour prior to eating, does not reduce abdominal discomfort when compared with placebo. However, it increases the rate of gastric emptying (20325).
Erectile dysfunction (ED). It is unclear if oral ginger is beneficial for erectile dysfunction. Details: Preliminary clinical research in middle-aged males with ED shows that taking two capsules of a specific combination product (Revactin, MD Concepts LLC) containing ginger root 250 mg, muira puama 250 mg, guarana 250 mg, and L-citrulline 800 mg twice daily for 3 months improves scores related to erectile function and intercourse satisfaction, but does not improve sexual desire or orgasmic function scores, when compared to baseline (103224). This study is limited by the lack of a placebo control, the use of per-protocol analysis, and a high dropout rate. In fact, 44% of patients withdrew in order to resume use of phosphodiesterase type 5 (PDE5) inhibitors. Further, it is unclear if these effects are due to ginger, other ingredients, or the combination.
Gastroenteritis-associated nausea and vomiting. It is unclear if oral ginger is beneficial for children with gastroenteritis-associated vomiting. Details: In children aged 1-10 years with acute gastroenteritis-associated vomiting, clinical research shows that taking a single dose of ginger reduces the risk of vomiting at least once in the subsequent 8 hours by 20% when compared with placebo. The incidence of vomiting over the next 24 and 48 hours was also modestly reduced. The children were given 20 drops of ginger equivalent to 10 mg immediately, followed by every 8 hours until cessation of vomiting. All children were offered hypotonic oral rehydration solution (ORS) 30 minutes after the first dose (106076). The number of children accepting ORS, and the quantity of ORS consumed, was less in the group receiving placebo. It is unclear if this affected the outcomes of this study. Also, the incidence or severity of nausea was not investigated.
Hangover. It is unclear if oral ginger is beneficial for managing symptoms of hangover. Details: Preliminary clinical research shows that use of a decoction containing a combination of ginger 6 grams, pith of Citrus tangerine 3 grams, and brown sugar decreases symptoms of alcohol hangovers, including nausea, vomiting, and diarrhea, when compared with placebo. The decoction was taken once 5 hours prior to drinking alcohol or four times after drinking alcohol (20320).
Hyperlipidemia. Oral ginger may be modestly beneficial for some patients with hyperlipidemia. Details: A meta-analysis of preliminary clinical research in adults with and without hyperlipidemia shows that taking ginger 200-3000 mg orally daily for 2-24 weeks reduces triglyceride and low-density lipoprotein cholesterol levels by 12 mg/dL and 5 mg/dL, respectively, and increases high-density lipoprotein cholesterol levels by 1 mg/dL when compared with placebo (109521). However, the validity of this study is limited by high heterogeneity. A clinical study in adults with hyperlipidemia shows that taking ginger powder 1 gram three times daily for 45 days reduces triglyceride and cholesterol levels by an additional 36% and 90%, respectively, when compared with placebo (20327).
Hypertension. It is unclear if oral ginger is beneficial for lowering blood pressure. Details: A preliminary clinical study in patients with diabetes and elevated systolic blood pressure shows that drinking black tea containing ginger 3 grams three times daily for 8 weeks does not reduce blood pressure by a clinically significant amount when compared with plain black tea (96669).
Hypothyroidism. It is unclear if oral ginger is beneficial in patients with hypothyroidism. Details: A small clinical study in patients with primary hypothyroidism who are stabilized on thyroid hormone therapy shows that taking ginger powder 500 mg twice daily for 30 days improves symptoms associated with hypothyroidism, including cold intolerance, constipation, dizziness, dry skin, weight gain, and concentration and memory issues, when compared with placebo. However, ginger supplementation does not seem to improve hair loss, hearing, nail fragility, speech, or feelings of depression in these patients (107903).
Insect bite. It is unclear if topical ginger is beneficial for reducing the size of insect bites. Details: Preliminary clinical research shows that a topical application of Trikatu, which contains ginger, long pepper, and black pepper extracts with 0.074% piperine and 0.046% gingerol, does not reduce the papule size associated with mosquito bites when compared with a control compound containing the same base ingredients of camphor 2%, menthol 2%, and eucalyptus oil 4% (89893).
Intraoperative nausea and vomiting (IONV). It is unclear if oral ginger is beneficial for preventing IONV. Details: Clinical research in individuals undergoing elective C-section and receiving cimetidine and metoclopramide, shows that taking ginger 1 gram orally 30 minutes prior to anesthesia reduces the number of episodes of intraoperative nausea, but not vomiting, when compared with placebo (89890). In other clinical research in adults undergoing elective surgical procedures, adding ginger to a high calorie drink consumed pre-operatively reduces the incidence of nausea from 40% to 10%, and the incidence of vomiting from 25% to 10% when compared with the high calorie drink alone (110007). The validity of these results is unclear as only patients were blinded to the treatment group.
Irritable bowel syndrome (IBS). Oral ginger might reduce symptoms of IBS when used in combination with other ingredients; its effect when used alone is unclear. Details: A small clinical trial shows that taking ginger 1-2 grams daily for 28 days does not improve symptoms or the number of responders when compared with placebo (90102). However, some research shows that ginger might be beneficial in some patients when used along with other herbal ingredients. Taking a capsule containing ginger, boswellia, and yarrow three times daily for 30 days reduces the frequency and severity of abdominal pain, as well as the severity of bloating, when compared with placebo in females, but not males, with mild to moderate IBS (96673). Another clinical study shows that taking an herbal mixture containing ginger, English horsemint, and purple nut sedge tuber three times daily for 8 weeks improves IBS symptoms including abdominal pain, stool frequency, stool consistency, incomplete evacuation, and urgency, when compared to baseline; these improvements are similar to those achieved by taking mebeverine 135 mg three times daily (89900). However, it is unclear if these effects are due to ginger, other ingredients, or the combination.
Joint pain. Oral ginger has only been evaluated in combination with other ingredients; its effect when used alone is unclear. Details: Clinical research shows that taking a specific combination product (Instaflex Joint Support, Direct Digital) containing glucosamine sulfate 1500 mg, methylsufonlylmethane 500 mg, white willow bark extract 250 mg, ginger root concentrate 50 mg, Boswellia extract 125 mg, turmeric root extract 50 mg, cayenne 40 m H.U. 50 mg, and hyaluronic acid 4 mg in three divided doses daily for 8 weeks reduces joint pain severity by 37% compared to only 16% with placebo. However, it does not improve joint stiffness or function when compared with placebo (89560). It is unclear if these effects are due to ginger, other ingredients, or the combination.
Menorrhagia. It is unclear if oral ginger is beneficial for menorrhagia. Details: Preliminary clinical research in healthy adults experiencing heavy menstrual bleeding shows that taking ginger 250 mg three times daily for 4 days, starting the day prior to menstruation, and repeating for three menstrual cycles, reduces the amount of menstrual bleeding when compared with placebo (96672).
Menopausal symptoms. Although there has been interest in using oral ginger for menopausal symptoms such as insomnia, there is insufficient reliable information about the clinical effects of ginger for this purpose.
Migraine headache. Small clinical studies suggest that oral ginger may modestly reduce migraine pain severity and duration. However, taking ginger doesn't seem to PREVENT migraines. Details: Ginger does not seem to be effective for the prevention of migraines. Clinical research in patients with episodic migraine shows that taking ginger extract 200 mg three times daily for 3 months does not reduce the number of migraine attacks, the use of analgesics, or the number of days with pain, any more than taking placebo (101761). However, ginger may be beneficial for the treatment of migraine. Clinical research shows that taking ginger extract 400 mg orally in the emergency room along with intravenous ketoprofen 100 mg reduces pain over the next 2 hours when compared with ketoprofen and placebo. This combination also resulted in an overall better response with a higher likelihood of having no or mild pain with treatment (101762). Taking ginger 250 mg at the onset of a common migraine headache seems to be as effective as taking sumatriptan 50 mg for reducing headache severity within two hours of treatment (89894). Furthermore, a combination of ginger and feverfew (GelStat Migraine, GelStat Corporation; LipiGesic M, PuraMed BioScience), administered sublingually at the onset of a migraine attack, decreases the duration and intensity of migraine pain when compared with placebo (19357,22602). It is unclear if these effects are due to ginger, feverfew, or the combination. Feverfew alone has demonstrated some benefit in treating migraines.
Multiple sclerosis (MS). It is unclear if oral ginger is beneficial for MS. Details: A small clinical study in adults with MS shows that taking ginger 500 mg three times daily for 12 weeks reduces disability scores and improves physical and psychological quality of life scores when compared with placebo (111541). Another small clinical study in adults with relapsing-remitting MS shows that taking ginger 500 mg three times daily for 12 weeks reduces the frequency and severity of nausea and constipation and the severity but not frequency of bloating when compared with placebo. However, no improvement was noted in other gastrointestinal symptoms of MS including abdominal pain, anorexia, diarrhea, dysphagia, gas, or heartburn (113614).
Nonalcoholic fatty liver disease (NAFLD). It is unclear if oral ginger is beneficial for NAFLD. Details: A small clinical study in patients with NAFLD shows that taking ginger 1000 mg twice daily for 12 weeks improves liver steatosis scores but not liver fibrosis scores when compared with placebo. Ginger also modestly improves levels of alanine aminotransferase and gamma-glutamyl transferase but not aspartate aminotransferase (113615). However, it is unclear whether any improvements are clinically significant. Another small clinical study in patients with NAFLD shows that taking ginger root 1500 mg daily for 12 weeks reduces low-density lipoprotein (LDL) cholesterol and fasting blood glucose levels, but does not affect triglycerides, high-density lipoprotein (HDL) cholesterol, insulin resistance, blood pressure, or fatty liver index, when compared with placebo (102465).
Obesity. Oral ginger has primarily been evaluated in combination with other ingredients; its effect when used alone is unclear. Details: Although some individual research disagrees (40802), a meta-analysis and most individual clinical trials show that taking ginger alone or with other ingredients does not reduce weight by a clinically significant amount when compared with placebo in overweight or obese individuals (20346,20347,96676,109521). Ginger has been taken alone or in combination with green tea and capsaicin; rhubarb, astragalus, red sage, turmeric, and gallic acid (Number Ten); or raspberry ketone (Razberi K, Integrity Nutraceuticals), caffeine, capsicum extract (Capsimax, OmniActive Health Technologies), bitter orange fruit (Advantra Z, Nutratech Inc), L-theanine, and black pepper fruit extract (Biperine, Sabinsa Corporation) (Prograde Metabolism) (20346,20347,40802,96676). Due to the various other ingredients contained in available formulations, any effect from ginger is unclear.
Parturition. It is unclear if bathing in a ginger bath is beneficial for shortening the duration of labor. Details: Preliminary clinical research shows that bathing in 228 liters of water containing 4 drops of ginger essential oil does not shorten the duration of labor when compared with a regular bath (20345).
Polycystic ovary syndrome (PCOS). It is unclear if oral ginger is beneficial for females with PCOS. Details: Preliminary clinical research in females with PCOS shows that taking ginger 500 mg three times daily orally for 8 weeks decreases body weight, body mass index, and levels of follicle stimulating hormone and luteinizing hormone, when compared with placebo. It does not affect testosterone levels (110006).
Postoperative nausea and vomiting (PONV). Evidence for the use of oral ginger for preventing PONV is inconclusive and conflicting. Reasons for the conflicting findings may relate to the ginger formulation used and the outcomes measured. It is unclear if ginger aromatherapy is beneficial for PONV. Details: Some individual clinical studies, as well as a large, recent meta-analysis of the available clinical research, show that taking ginger by mouth 1 hour prior to surgery does not reduce the incidence of 24-hour PONV (3452,3453,17369,99445). Also, the meta-analysis found that, although ginger reduces the severity of PONV when measured on a visual analogue scale (VAS), it does not reduce the severity of PONV when measured on a verbal descriptive scale (VDS). Furthermore, ginger does not reduce the use of rescue antiemetic medications (99445). However, some small, individual clinical studies and a meta-analysis of older clinical research show that taking ginger by mouth prior to surgery reduces the incidence of 24-hour PONV by up to 16% to 38% (722,723,1919,13237,20336,20338,20339). In addition, large clinical trials show that the frequency and severity of PONV 2-6 hours after surgery are similar when ginger 1 gram is given orally or when medications such as metoclopramide or dexmedetomidine are given intravenously prior to undergoing anesthesia (103356,103360). However, taking ginger prior to general anesthesia, in combination with other antiemetics like dexamethasone or cimetidine and metoclopramide, does not seem to reduce nausea and vomiting when compared with the other medications alone (20337,89890). In contrast, other research shows that powdered ginger 1-2 grams 30-60 minutes before induction of anesthesia has been used in most studies showing benefit, occasionally followed by 1 gram of ginger administered two hours after surgery (722,723,13237,20336,20338,103356,103360). Ginger aromatherapy has also been evaluated for the prevention of PONV. Application of 5% ginger essential oil to the wrists of patients prior to the induction of general anesthesia seems to prevent PONV in approximately 80% of treated patients (20334). Also, use of ginger essential oil aromatherapy on a gauze pad results in nausea relief in approximately 67% of patients compared with 40% in the placebo group; however, a blend of essential oils including ginger, spearmint, peppermint, and cardamom, results in nausea relief in 82% of patients (89888).These conflicting findings may be due to differences in outcome measures and the chemical compositions of ginger preparations used in the various clinical studies. Some evidence suggests that the efficacy of ginger for preventing PONV differs based on the formulation used. A network meta-analysis of 18 studies evaluating various ginger preparations, including ginger oil, ginger powder, ginger extract, and a combination of ginger powder and antiemetics, for the prevention of PONV suggests that ginger powder and ginger oil are the most effective formulations for preventing nausea and vomiting, respectively. The analysis also shows that while no ginger formulation is superior to another for the prevention of nausea, ginger powder and ginger oil have a lower risk of postoperative vomiting when compared with ginger extract. A subgroup analysis suggests that ginger seems to be most effective in adults over 30 years of age, when administered preoperatively, and when used for gastrointestinal, hepatobiliary, obstetric, or ophthalmic surgeries (112108).
Postoperative recovery. It is unclear if oral ginger is beneficial for postoperative recovery. Details: One preliminary clinical study in adults who had a tonsillectomy shows that taking a specific ginger supplement (Solgar, Leonia) 500 mg twice daily for 7 days along with acetaminophen and antibiotics modestly improves pain and wound healing when compared with acetaminophen and antibiotics alone (96674).
Postpartum complications. It is unclear if oral ginger is beneficial in patients with postpartum pain. Details: A small clinical study in patients recovering from vaginal delivery shows that taking ginger powder 500 mg 8-hours post-delivery, followed by 250 mg every 8 hours thereafter for 24 hours, reduces postpartum pain by nearly 1 point on a 10-point rating scale when compared with placebo (107904). It is unclear if this improvement would be considered clinically relevant.
Radiation-induced nausea and vomiting. It is unclear if oral ginger is beneficial in patients with radiation-induced nausea and vomiting. Details: A very small study in adults with cervical cancer undergoing treatment with cisplatin and radiotherapy shows that taking ginger 250-500 mg twice daily for 6 weeks in addition to standard antiemetic therapy does not reduce acute or delayed nausea and vomiting when compared with antiemetic therapy alone (113616).
Rheumatoid arthritis (RA). One small clinical study suggests that oral ginger may improve some symptoms of RA. Details: Preliminary clinical research in adults with RA shows that taking ginger powder 1500 mg daily for 12 weeks improves disease activity on the Disease Activity Score-28 when compared with placebo (100697).
Smoking cessation. Oral ginger has only been evaluated in combination with other ingredients; its effect when used alone is unclear. Details: A moderate-sized clinical study in adults with a history of smoking 5 or more cigarettes daily for at least 3 years shows that taking a specific combination product containing ginger 25 mg, turmeric, ashwagandha, Indian gooseberry, tribulus, bacopa, Albizia lebbeck, licorice, clove, cowhage, holy basil, and turmeric (Smotect, Smotect India) daily for 3 months reduces the number of cigarettes smoked by approximately 3 per day when compared with placebo. This product also reduces levels of alveolar carbon monoxide and carboxyhemoglobin but does not improve lung capacity (112115). However, only data from patients who completed treatment were analyzed, which limits the validity of this study. It is also unclear if these effects are due to ginger, other ingredients, or the combination.
Swallowing dysfunction. The effects of oral ginger for treating swallowing dysfunction are inconclusive. Reasons for the conflicting findings may relate to the route of administration or the number of treatments provided. Details: Clinical research shows that applying a spray containing ginger and clematix root (Tongyan) to the oropharynx for 28 days is more effective than placebo at treating grade 2 or 3 dysphagia in stroke victims. However, there does not seem to be a beneficial effect in patients with grade 1 dysphagia (20342). Other clinical research in elderly patients with dysphagia shows that taking a single dose of ginger 2 mg orally does not improve swallowing but increases saliva (96671). It is possible that a single dose of ginger is not enough to improve swallowing function.
Toxin-induced liver damage. Oral ginger might help to prevent liver damage in patients using antimycobacterial drugs. Details: Preliminary clinical research shows that a specific ginger supplement (Zintoma, Goldaru) 500 mg taken 30 minutes prior to antimycobacterial drugs daily for 4 weeks reduces the percentage of patients experiencing an increase in liver function enzymes to greater than five times the upper limit of normal by 54% when compared with placebo. Antimycobacterial drugs used for tuberculosis in the study included isoniazid 5 mg/kg, rifampin 10 mg/kg, ethambutol 15 mg/kg, and pyrazinamide 25 mg/kg daily (96670).
Traumatic brain injury (TBI). Oral ginger has only been evaluated in combination with other ingredients; its effect when used alone is unclear. Details: Preliminary research in young adults with subjective memory dysfunction associated with mild TBI, shows that taking a combination of ginger 36 mg and boswellia 360 mg (Memoral) every 8 hours orally for one month improves scores for some, but not all, parameters on an auditory-visual learning test performed at one and three months, when compared with placebo. Total learning scores increased by about 7.5 points with the ginger combination product, compared with 4 points for placebo (110132). It is unclear if these effects are due to ginger, boswellia, or the combination.
Ulcerative colitis. It is unclear if oral ginger is beneficial for improving symptoms of ulcerative colitis. Details: Preliminary clinical research in adults with ulcerative colitis shows that taking ginger powder 1000 mg twice daily for 12 weeks improves disease activity as measured by the Simple Clinical Colitis Activity Index Questionnaire when compared with taking placebo. However, taking ginger did not improve quality of life, stool frequency, bowel distress, or flatulence when compared with placebo (100694). It is possible that this study was not adequately powered to detect a difference in these secondary outcomes.
Upper respiratory tract infection (URTI). Although there has been interest in using oral ginger for various upper respiratory tract infections, there is insufficient reliable information about the clinical effects of ginger for this condition.
Vertigo. It is unclear if oral ginger is beneficial for improving symptoms of vertigo. Details: A small clinical study shows that taking 1 gram of ginger orally as a single dose prior to stimulated vertigo seems to reduce symptoms of vertigo, including nausea, when compared with placebo. However, it does not seem to reduce nystagmus (7623). More evidence is needed to rate ginger for these uses.

(Read more about GINGER)

GUMWEED (Grindelia camporum)

There is insufficient reliable information available about the effectiveness of gumweed.

(Read more about GUMWEED)

MULLEIN

INSUFFICIENT RELIABLE EVIDENCE to RATE

Asthma. Although there is interest in using oral mullein for asthma, there is insufficient reliable information about the clinical effects of mullein for this condition.
Bronchitis. Although there is interest in using oral mullein for bronchitis, there is insufficient reliable information about the clinical effects of mullein for this condition.
Cough. Although there is interest in using oral mullein for cough, there is insufficient reliable information about the clinical effects of mullein for this purpose.
Diarrhea. Although there is interest in using oral mullein for diarrhea, there is insufficient reliable information about the clinical effects of mullein for this purpose.
Hemorrhoids. Although there is interest in using topical mullein for hemorrhoids, there is insufficient reliable information about the clinical effects of mullein for this purpose.
Influenza. Although there is interest in using oral mullein for influenza, there is insufficient reliable information about the clinical effects of mullein for this condition.
Migraine headache. Although there is interest in using oral mullein for migraine headache, there is insufficient reliable information about the clinical effects of mullein for this condition.
Otitis media. Topical mullein has only been evaluated in combination with other ingredients; its effect when used alone is unclear. Details: Preliminary clinical research shows that applying a specific combination product containing mullein, garlic, calendula, and St. John's wort in olive oil (Otikon Otic Solution, Healthy-On Ltd), five drops into the affected ear three times daily for 3 days, reduces ear pain in children and adolescents with otitis media (39500,39552). Whether this effect is due to mullein, one of the other ingredients, or the combination is unclear.
Pneumonia. Although there is interest in using oral mullein for pneumonia, there is insufficient reliable information about the clinical effects of mullein for this condition.
Wound healing. It is unclear if topical mullein is helpful for healing episiotomy wounds. Details: In preliminary clinical research in primiparous patients with episiotomy wounds, applying a cream containing mullein flower extract 7.5%, 2 cm twice daily for 10 days, improves redness, edema, ecchymoses, discharge, and wound edge adhesions (REEDA score for episiotomy wound healing) at 10 days, but not earlier, when compared with placebo (107873). More evidence is needed to rate mullein for these uses.

(Read more about MULLEIN)

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Safety view details

Below is general information about the safety of the known ingredients contained in the product Inula Combo #1. Some ingredients may not be listed. This information does NOT represent a recommendation for or a test of this specific product as a whole.

CAPSICUM (Cayenne)

LIKELY SAFE ...when used orally in amounts typically found in food. Capsicum has Generally Recognized as Safe (GRAS) status in the US (4912). ...when used topically and appropriately (7038,10650,105345). The active capsicum constituent capsaicin is an FDA-approved ingredient used in certain over-the-counter, topical preparations (272).

POSSIBLY SAFE ...when used orally and appropriately, short-term in medicinal amounts. A specific sustained-release chili extract (Capsifen) has been used safely in doses of up to 200 mg daily, for up to 28 days (105196). ...when used intranasally and appropriately, short-term. Capsicum-containing nasal sprays, suspensions, and swabs seem to be safe when applied multiple times over 24 hours or when applied daily or every other day for up to 14 days. Although no serious side effects have been reported in clinical trials, intranasal application of capsicum-containing products can be very painful (14322,14324,14328,14329,14351,14352,14353,14356,14357) (14358,14359,14360,15016,105204). POSSIBLY UNSAFE when used orally, long-term or in high doses. There is concern that long-term use or use of excessive doses might be linked to hepatic or kidney damage, as well as hypertensive crisis (12404,40569,40606). There is insufficient reliable information available about the safety of capsicum when injected.

CHILDREN: POSSIBLY UNSAFE
when used topically in children under 2 years old (272). There is insufficient reliable information available about the safety of capsicum when used orally in children.

PREGNANCY: LIKELY SAFE
when used topically and appropriately (272).

PREGNANCY: POSSIBLY SAFE
when used orally and appropriately, short-term. Capsicum 5 mg daily has been used for up to 28 days during the latter half of the second trimester and the third trimester (96457).

LACTATION: LIKELY SAFE
when used topically and appropriately (272).

LACTATION: POSSIBLY UNSAFE
when used orally. Dermatitis can sometimes occur in infants when foods heavily spiced with capsicum peppers are ingested during lactation (739). Also, observational research suggests that intake of raw capsicum peppers during pregnancy is associated with an increased risk of sensitization to inhalant allergens in children by the age of 2 years (41021).

(Read more about CAPSICUM)

ELECAMPANE

POSSIBLY SAFE ...when used orally and appropriately in medicinal amounts (12).

POSSIBLY UNSAFE ...when used orally in large amounts. Elecampane can cause gastrointestinal upset and symptoms of paralysis (12).

PREGNANCY AND LACTATION: LIKELY UNSAFE
when used orally (12); avoid using.

(Read more about ELECAMPANE)

GINGER

LIKELY SAFE ...when used orally and appropriately. Ginger has been safely used in multiple clinical trials (721,722,723,5343,7048,7084,7085,7400,7623,11346)(12472,13080,13237,13244,17369,17928,17929,89889,89890,89894)(89895,89898,89899,90102,96252,96253,96259,96260,96669) (101760,101761,101762,103359,107903).

POSSIBLY SAFE ...when used topically and appropriately, short-term (89893,89897).

CHILDREN: LIKELY SAFE
when consumed in the amounts typically found in foods.

CHILDREN: POSSIBLY SAFE
when used orally and appropriately, short-term. Ginger powder has been used with apparent safety at a dose of up to 750 mg daily for 4 days in girls aged 14-18 years (96255).

PREGNANCY: LIKELY SAFE
when consumed in the amounts typically found in foods. Ginger is considered a first-line nonpharmacological treatment option for nausea in pregnancy by the American College of Obstetrics and Gynecology (ACOG) (111601). However, it should not be used long-term or without medical supervision and close monitoring.

PREGNANCY: POSSIBLY SAFE
when used for medicinal purposes. Despite some early reports of adverse effects (721,7083) and one observational study suggesting that taking dried ginger and other herbal supplements during the first 20 weeks of pregnancy marginally increased the chance of stillbirth (96254), most research shows that ginger is unlikely to cause harm to the baby. The risk for major malformations in infants of parents who took ginger when pregnant does not appear to be higher than the baseline rate of 1% to 3% (721,1922,5343,11346,13071,13080,96254). Also, other research suggests that ginger intake during various trimesters does not significantly affect the risk of spontaneous abortion, congenital malformations, stillbirth, perinatal death, preterm birth, low birth weight, or low Apgar scores (18211,90103). Ginger use has been associated with an increase in non-severe vaginal bleeding, including spotting, after week 17 of pregnancy (18211).

LACTATION: LIKELY SAFE
when consumed in the amounts typically found in foods. There is insufficient reliable information available about the safety of ginger when used for medicinal purposes; avoid amounts greater than those found in foods.

(Read more about GINGER)

GUMWEED (Grindelia camporum)

POSSIBLY SAFE ...when used orally and appropriately (2,12). There is insufficient reliable information available about the safety of gumweed when used topically.

PREGNANCY AND LACTATION:
Insufficient reliable information available; avoid using.

(Read more about GUMWEED)

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Interactions with Drugs view details

Below is general information about the interactions of the known ingredients contained in the product Inula Combo #1. Some ingredients may not be listed. This information does NOT represent a recommendation for or a test of this specific product as a whole.

CAPSICUM (Cayenne)

ACE INHIBITORS (ACEIs)

Interaction Rating = Minor Be watchful with this combination.

Severity = Mild • Occurrence = Unlikely • Level of Evidence = D

Theoretically, using topical capsaicin may increase the risk of ACE inhibitor-induced cough.

Details

There is one case report of a topically applied capsaicin cream contributing to the cough reflex in a patient using an ACEI (12414). However, it is unclear if this interaction is clinically significant.

ANTICOAGULANT/ANTIPLATELET DRUGS

Interaction Rating = Moderate Be cautious with this combination.

Severity = High • Occurrence = Possible • Level of Evidence = B

Theoretically, capsicum may increase the risk of bleeding if used with anticoagulant or antiplatelet drugs.

Details

In vitro research shows that capsicum might increase the effects of antiplatelet drugs (12406,12407). Also, population research shows that capsicum is associated with an increased risk of self-reported bleeding in patients taking warfarin (12405,20348). However, clinical research shows that taking a single dose of capsaicin (Asian Herbex Ltd.), the active ingredient in capsicum, 400-800 mcg orally in combination with aspirin 500 mg does not decrease platelet aggregation when compared with taking aspirin 500 mg alone. Also, there was no notable effect on measures of platelet aggregation with capsaicin (92990). It is unclear whether capsaicin must be used in more than a single dose to affect platelet aggregation.

ANTIDIABETES DRUGS

Interaction Rating = Moderate Be cautious with this combination.

Severity = Moderate • Occurrence = Possible • Level of Evidence = B

Theoretically, taking capsicum with antidiabetes drugs might increase the risk of hypoglycemia.

Details

Preliminary clinical research shows that consuming capsicum 5 grams along with a glucose drink attenuates the rise in plasma glucose after 30 minutes by 21%, decreases the 2-hour postprandial area under the curve of plasma glucose by 11%, and increases the 2-hour postprandial area under the curve of plasma insulin by 58% in healthy individuals when compared with placebo (40453,40614). Other clinical research shows that taking capsicum 5 mg daily for 28 days significantly reduces postprandial blood glucose and insulin levels, but not fasting blood glucose and insulin levels, in patients with gestational diabetes (96457).

ASPIRIN

Interaction Rating = Moderate Be cautious with this combination.

Severity = Moderate • Occurrence = Possible • Level of Evidence = D

Theoretically, taking capsicum with aspirin might reduce the bioavailability of aspirin.

Details

Animal research shows that acute or chronic intake of capsicum pepper reduces oral aspirin bioavailability (22617). This has not been shown in humans.

CIPROFLOXACIN (Cipro)

Interaction Rating = Minor Be watchful with this combination.

Severity = Mild • Occurrence = Possible • Level of Evidence = D

Theoretically, taking capsicum with ciprofloxacin might increase levels and adverse effects of ciprofloxacin.

Details

Animal research shows that concomitant use of capsaicin, the active constituent of capsicum, and ciprofloxacin increases the bioavailability of ciprofloxacin by up to 70% (22613).

THEOPHYLLINE

Interaction Rating = Moderate Be cautious with this combination.

Severity = Moderate • Occurrence = Possible • Level of Evidence = D

Theoretically, taking capsicum with theophylline might increase the levels and adverse effects of theophylline.

Details

In animal research, oral administration of capsicum reduced excretion of theophylline (12405). However, capsicum does not seem to affect the pharmacokinetics of theophylline when administered intravenously (22616).

(Read more about CAPSICUM)

ELECAMPANE

CNS DEPRESSANTS

Interaction Rating = Moderate Be cautious with this combination.

Severity = High • Occurrence = Possible • Level of Evidence = D

Theoretically, elecampane may cause additive sedative effects when taken with CNS depressants.

Details

Elecampane might have sedative effects (4).

(Read more about ELECAMPANE)

GINGER

ANTICOAGULANT/ANTIPLATELET DRUGS

Interaction Rating = Moderate Be cautious with this combination.

Severity = High • Occurrence = Possible • Level of Evidence = B

Ginger may have antiplatelet effects and may increase the risk of bleeding if used with anticoagulant or antiplatelet drugs. However, research is conflicting.

Details

Laboratory research suggests that ginger inhibits thromboxane synthetase and decreases platelet aggregation (7622,12634,20321,20322,20323,96257). However, this has not been demonstrated unequivocally in humans, with mixed results from clinical trials (96257). Theoretically, excessive amounts of ginger might increase the risk of bleeding when used with anticoagulant/antiplatelet drugs.

ANTIDIABETES DRUGS

Interaction Rating = Moderate Be cautious with this combination.

Severity = Moderate • Occurrence = Possible • Level of Evidence = D

Theoretically, taking ginger with antidiabetes drugs might increase the risk of hypoglycemia.

Details

Animal and human research suggests that ginger might increase insulin levels and/or decrease blood glucose levels (12636,20402,20403,20404,20405,89895,89896,107898).

CALCIUM CHANNEL BLOCKERS

Interaction Rating = Minor Be watchful with this combination.

Severity = Moderate • Occurrence = Unlikely • Level of Evidence = D

Theoretically, taking ginger with calcium channel blockers might increase the risk of hypotension.

Details

Some animal and in vitro research suggests that ginger has hypotensive and calcium channel-blocking effects (12633). Another animal study shows that concomitant administration of ginger and the calcium channel blocker amlodipine leads to greater reductions in blood pressure when compared with amlodipine alone (107901).

CYCLOSPORINE (Neoral, Sandimmune)

Interaction Rating = Minor Be watchful with this combination.

Severity = Mild • Occurrence = Possible • Level of Evidence = D

Theoretically, when taken prior to cyclosporine, ginger might decrease cyclosporine levels.

Details

In an animal model, ginger juice taken 2 hours prior to cyclosporine administration reduced the maximum concentration and area under the curve of cyclosporine by 51% and 40%, respectively. This effect was not observed when ginger juice and cyclosporine were administered at the same time (20401).

CYTOCHROME P450 1A2 (CYP1A2) SUBSTRATES

Interaction Rating = Minor Be watchful with this combination.

Severity = Insignificant • Occurrence = Possible • Level of Evidence = D

Theoretically, ginger might increase the levels of CYP1A2 substrates.

Details

In vitro research shows that ginger inhibits CYP1A2 activity (111544). However, this interaction has not been reported in humans.

CYTOCHROME P450 2B6 (CYP2B6) SUBSTRATES

Interaction Rating = Minor Be watchful with this combination.

Severity = Insignificant • Occurrence = Possible • Level of Evidence = D

Theoretically, ginger might increase the levels of CYP2B6 substrates.

Details

In vitro research shows that ginger inhibits CYP2B6 activity (111544). However, this interaction has not been reported in humans.

CYTOCHROME P450 2C9 (CYP2C9) SUBSTRATES

Interaction Rating = Minor Be watchful with this combination.

Severity = Insignificant • Occurrence = Possible • Level of Evidence = D

Theoretically, ginger might increase the levels of CYP2C9 substrates.

Details

In vitro research shows that ginger inhibits CYP2C9 activity (111544). However, this interaction has not been reported in humans.

CYTOCHROME P450 3A4 (CYP3A4) SUBSTRATES

Interaction Rating = Moderate Be cautious with this combination.

Severity = Moderate • Occurrence = Possible • Level of Evidence = D

Ginger might increase or decrease the levels of CYP3A4 substrates.

Details

In vitro research and some case reports suggest that ginger inhibits CYP3A4 activity (111544,111644). Three case reports from the World Health Organization (WHO) adverse drug reaction database describe increased toxicity in patients taking ginger and cancer medications that are CYP3A4 substrates (imatinib, dabrafenib, and crizotinib). However, the causality of this interaction is unclear due to the presence of multiple interacting drugs and routes of administration (111644).
Conversely, other in vitro research suggests that ginger induces CYP3A4 activity, leading to reduced levels of CYP3A4 substrates (111404). However, this interaction has not been reported in humans.

LOSARTAN (Cozaar)

Interaction Rating = Moderate Be cautious with this combination.

Severity = Moderate • Occurrence = Possible • Level of Evidence = D

Theoretically, ginger might increase levels of losartan and the risk of hypotension.

Details

In animal research, ginger increased the levels and hypotensive effects of a single dose of losartan (102459). It is not clear if ginger alters the concentration or effects of losartan when taken continuously. Additionally, this interaction has not been shown in humans.

METRONIDAZOLE (Flagyl)

Interaction Rating = Minor Be watchful with this combination.

Severity = Mild • Occurrence = Possible • Level of Evidence = D

Theoretically, ginger might increase levels of metronidazole.

Details

In an animal model, ginger increased the absorption and plasma half-life of metronidazole. In addition, the elimination rate and clearance of metronidazole was significantly reduced (20350).

NIFEDIPINE (Procardia)

Interaction Rating = Moderate Be cautious with this combination.

Severity = Moderate • Occurrence = Possible • Level of Evidence = B

Ginger may have antiplatelet effects and increase the risk of bleeding if used with nifedipine.

Details

Clinical research shows that combined treatment with ginger 1 gram plus nifedipine 10 mg significantly inhibits platelet aggregation when compared to nifedipine or ginger alone (20324).

P-GLYCOPROTEIN SUBSTRATES

Interaction Rating = Moderate Be cautious with this combination.

Severity = Moderate • Occurrence = Possible • Level of Evidence = D

Ginger might increase the absorption and blood levels of P-glycoprotein (P-gp) substrates.

Details

In vitro research and case reports suggest that ginger inhibits drug efflux by P-gp, potentially increasing absorption and serum levels of P-gp substrates (111544,111644). Two case reports from the World Health Organization (WHO) adverse drug reaction database describe increased toxicity in patients taking ginger and cancer medications that are P-gp substrates (trametinib, crizotinib). However, the causality of this interaction is unclear due to the presence of multiple interacting drugs and routes of administration (111644).

PHENPROCOUMON (Marcoumar, others)

Interaction Rating = Moderate Be cautious with this combination.

Severity = High • Occurrence = Possible • Level of Evidence = D

Ginger might increase the risk of bleeding with phenprocoumon.

Details

Phenprocoumon, a warfarin-related anticoagulant, might increase the international normalized ratio (INR) when taken with ginger. There is one case report of a 76-year-old woman with a stable INR on phenprocoumon that increased to greater than 10 when she began consuming dried ginger and ginger tea (12880).

WARFARIN (Coumadin)

Interaction Rating = Moderate Be cautious with this combination.

Severity = High • Occurrence = Possible • Level of Evidence = B

Ginger might increase the risk of bleeding with warfarin.

Details

Laboratory research suggests that ginger might inhibit thromboxane synthetase and decrease platelet aggregation (7622,12634,20321,20322,20323). In one case report, ginger increased the INR when taken with phenprocoumon, which has similar pharmacological effects as warfarin (12880). In another case report, ginger increased the INR when taken with a combination of warfarin, hydrochlorothiazide, and acetaminophen (20349). A longitudinal analysis suggests that taking ginger increases the risk of bleeding in patients taking warfarin for at least 4 months (20348). However, research in healthy people suggests that ginger has no effect on INR, or the pharmacokinetics or pharmacodynamics of warfarin (12881,15176). Until more is known, monitor INRs closely in patients taking large amounts of ginger.

(Read more about GINGER)

GUMWEED (Grindelia camporum)

None known.

(Read more about GUMWEED)

MULLEIN

None known.

(Read more about MULLEIN)

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Adverse Effects view details

Report an Adverse Reaction to Inula Combo #1

Below is general information about the adverse effects of the known ingredients contained in the product Inula Combo #1. Some ingredients may not be listed. This information does NOT represent a recommendation for or a test of this specific product as a whole.

CAPSICUM (Cayenne)

General ...Orally, capsicum is generally well tolerated in amounts typically found in food or when the extract is used in doses of up to 200 mg daily. Topically and intranasally, capsaicin, a constituent of capsicum, is generally well tolerated.
Most Common Adverse Effects:
Orally: Belching, bloating, burning, diarrhea, dyspepsia, gas, headache, mild constipation, nausea, rhinorrhea, skin flushing, and sweating.
Serious Adverse Effects (Rare):
Orally: Cases of myocardial infarction and hypertensive crisis have been reported.

Cardiovascular ...Orally, palpitation was reported in one clinical trial (105196).
One case of myocardial infarction has been reported in a 41-year-old male without cardiovascular risk factors; the event was attributed to the use of an oral capsicum pepper pill that the patient had been taking for weight loss (40768). Another case of coronary vasospasm and acute myocardial infarction has been reported for a healthy 29-year-old male; the event was attributed to the use of a topical capsicum-containing patch that the patient had been applying to the middle of the back for 6 days (40658). Two cases of arterial hypertensive crisis have been reported for individuals who ingested a large amount of peppers and chili peppers the day before. One of the patients also had an acute myocardial infarction, and the other had high levels of thyroid stimulating hormone (40569,40606).

Dermatologic ...Orally, capsicum or its constituent capsaicin may cause urticaria and skin wheals in rare cases (96457,105203).
Topically, capsicum can cause a prickling sensation, itching, pain, burning, edema, stinging, irritation, rash, and erythema. About 1 in 10 patients who use capsaicin topically discontinue treatment because of adverse effects. These effects seem to occur more often with topical formulations containing higher concentrations of capsaicin, the active constituent of capsicum. Side effects tend to diminish with continued use (12401,15260,15261,40358,40439,40483,40547,40676,40682,40719)(40784,40847,92979,92983,92984,96453,105193,105197,105202,111514). In one case, application of a capsaicin 8% patch (Qutenza) for 60 minutes caused a second-degree burn, characterized by burning, erythema, severe pain, and blistering at the administration site. The burn was treated with topical corticosteroids, but 9 months later neuropathic pain persisted, resulting in limited mobility. It is unclear whether the mobility sequalae were caused by topical capsaicin or the patient's pre-existing neurological disorders (111514). Skin contact with fresh capsicum fruit can also cause irritation or contact dermatitis (12408).
Intranasally, capsaicin can cause nasal burning and pain in most patients. It also often causes lacrimation, sneezing, and excessive nasal secretion; however, these side effects appear to diminish with repeat applications (14323,14329,14358). In some cases, the burning sensation disappears after 5-8 applications (14351,14358). In some cases, patients are pretreated with intranasal lidocaine to decrease the pain of intranasal capsaicin treatment. However, even with lidocaine pretreatment, patients seem to experience significant pain (14324).

Gastrointestinal ...Orally, capsicum can cause upper abdominal discomfort, including irritation, fullness, dyspepsia, gas, bloating, nausea, epigastric pain and burning, anal burning, diarrhea, mild constipation, and belching (12403,12410,40338,40427,40456,40503,40560,40584,40605,40665)(40718,40725,40745,40808,40828,96456,96457,105194,105196). There is a case report of a 3-year-old female who experienced a burning and swollen mouth and lips after touching the arm of a parent that had been treated with a capsaicin patch and then placing the fingers in the mouth (105199). Excessive amounts of capsaicin can lead to gastroenteritis and hepatic necrosis (12404). In a case report, a 40-year-old male with diabetes consumed white wine daily and chewed cayenne which was thought to result in black teeth stains and loss of enamel (40809). Some preliminary research links ingestion of capsaicin with stomach and gallbladder cancer; however the link may be due to contamination of capsaicin products with carcinogens (40771).
Topically, capsaicin can cause diarrhea and vomiting (105202).

Immunologic ...In a case report, a 34-year-old female had anaphylaxis involving difficulty breathing and stupor and also urticaria after consuming a red bell pepper, which is in the capsicum genus. The causal chemical was theorized to be 1,3-beta-glucanase (92978). In another case report, a 33-year-old female experienced angioedema, difficulty breathing and swallowing, and urticaria after ingesting raw green and red peppers (92982).

Neurologic/CNS ...Orally, capsicum can cause sweating and flushing of the head and neck, lacrimation, headache, faintness, and rhinorrhea (7005,12410,105196,105203). Topically, applying capsaicin can cause headache (96450,105202). Injection of capsaicin into the intermetatarsal space has also been associated with headache (96454).

Ocular/Otic ...Topically, capsicum can be extremely irritating to the eyes and mucous membranes. Capsicum oleoresin, an oily extract in pepper self-defense sprays, causes intense eye pain. It can also cause erythema, blepharospasm, tearing, shortness of breath, and blurred vision. In rare cases, corneal abrasions have occurred (12408,12409,40345,40348,40383,40720,40857).
Inhalation of capsicum can cause eye irritation, and allergic alveolitis (5885). In a case report, a 38-year-old female had acute anterior uveitis that developed about 12 hours after using a specific patch (Isola Capsicum N Plus) that contained capsaicin 1.5 mg per patch and methyl salicylate 132 mg per patch for neck pain. The uveitis was controlled with topical steroids and did not recur (92977).

Oncologic ...Population research suggests that moderate to high intake of capsaicin, the active constituent of capsicum, is associated with an increased risk of gastric cancer, while low intake is associated with a decreased risk. It is not clear from the study what amount of capsaicin is considered high versus low intake (92988). Additionally, some research suggests that any link may be due to contamination of capsaicin products with carcinogens (40771).

Pulmonary/Respiratory ...Orally, difficulty breathing was reported in a clinical trial (105196).
Topically, nasopharyngitis related to the use of a cream containing capsaicin has been reported (105202).
Inhalation of capsicum and exposure to capsicum oleoresin spray can cause cough, dyspnea, pain in the nasal passages, sneezing, rhinitis, and nasal congestion (5885,15016,40522,40546,40647). In rare cases, inhalation of the capsicum oleoresin or pepper spray has caused cyanosis, apnea, respiratory arrest and death in people. Death was caused by asphyxiation probably due to acute laryngeal edema and bronchoconstriction from inhalation of the capsicum oleoresin spray (40546,40672,40837,40879).
In a case report, a 47-year-old female who was exposed to capsaicin gas for more than 20 minutes experienced acute cough, shortness of breath, short-term chest pain, wheezing, and difficulty breathing for months afterwards (92980). In rare cases, exposure to capsicum oleoresin spray resulted in apnea, pulmonary injury, cyanosis, and even respiratory arrest (40383,40546).

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ELECAMPANE

General ...There is a limited amount of information available about the adverse effects of elecampane.
Most Common Adverse Effects:
Topically: Allergic contact dermatitis in sensitive individuals.
Serious Adverse Effects (Rare):
Orally: Diarrhea, vomiting, spasms, and symptoms of paralysis at high doses.

Gastrointestinal ...Orally, large doses of elecampane may cause vomiting and diarrhea (12).

Immunologic ...Topically, elecampane can cause allergic contact dermatitis (6958,48729,48731), especially in individuals sensitive to the Asteraceae/Compositae family. Members of this family include ragweed, chrysanthemums, marigolds, daisies, and many other herbs.

Musculoskeletal ...Orally, large doses of elecampane may cause spasms and symptoms of paralysis (12).

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GINGER

General ...Orally, ginger is generally well tolerated. However, higher doses of 5 grams per day increase the risk of side effects and reduce tolerability. Topically, ginger seems to be well tolerated.
Most Common Adverse Effects:
Orally: Abdominal discomfort, burping, diarrhea, heartburn, and a pepper-like irritant effect in the mouth and throat. However, some of these mild symptoms may be reduced by ingesting encapsulated ginger in place of powdered ginger.
Topically: Dermatitis in sensitive individuals.

Cardiovascular ...Orally, use of ginger resulted in mild arrhythmia in one patient in a clinical trial (16306).

Dermatologic ...Orally, ginger can cause hives (17933), as well as bruising and flushing (20316) or rash (20316).
Topically, ginger can cause dermatitis in sensitive individuals (12635,46902).

Gastrointestinal ...Orally, common side effects of ginger include nausea (17933,22602,89898,101761), belching (10380,103359), dry mouth (103359), dry retching (10380), vomiting (10380), burning sensation (10380), oral numbness (22602), abdominal discomfort (5343,89898,96253), heartburn (5343,7624,12472,16306,20316,51845,89894,89895,89898,89899)(101760,101761,101762,111543), diarrhea (5343,101760), constipation (89898,101760,101761), or a transient burning or "chilly hot" sensation of the tongue and throat (52076). Orally, Number Ten, a specific product composed of rhubarb, ginger, astragalus, red sage, and turmeric, can increase the incidence of loose stools (20346).
Four cases of small bowel obstruction due to ginger bolus have been reported following the ingestion of raw ginger without sufficient mastication (chewing). In each case, the bolus was removed by enterotomy. Ginger is composed of cellulose and therefore is resistant to digestion. It can absorb water, which may cause it to swell and become lodged in narrow areas of the digestive tract (52115).

Genitourinary ...In one clinical trial, some patients reported increased menstrual bleeding while taking a specific ginger extract (Zintoma, Goldaru) 250 mg four times daily orally for 3 days (17931). An "intense" urge to urinate after 30 minutes was reported in two of eight patients given 0.5-1 gram of ginger (7624). However, this effect has not been corroborated elsewhere. Dysuria, flank pain, perineal pain, and urinary stream interruption have been reported in a 43-year-old male who drank ginger tea, containing 2-3 teaspoons of dry ginger, daily over 15 years. The adverse effects persisted for 4 years and were not associated with increases in urinary frequency or urgency. Upon discontinuing ginger, the patient's symptoms began to improve within one week and completely resolved after eight weeks, with no relapses six months later (107902).

Immunologic ...In one case report, a 59-year-old Japanese female with multiple allergic sensitivities developed pruritus and then anaphylactic shock after taking an oral ginger-containing herbal supplement for motion sickness (Keimei Gashinsan, Keimeido). The patient had used this supplement previously for over 20 years with no allergic reaction. The authors theorized the development of a cross-reactivity to ginger after the use of an oral supplement containing zedoary and turmeric, which are also in the Zingiberaceae family (102463).

Neurologic/CNS ...Orally, ginger may cause sedation, drowsiness, or dizziness (16306,17933,51845).

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GUMWEED (Grindelia camporum)

General ...Orally, gumweed seems to be well tolerated. It can cause gastric mucosal irritation (2,12), diarrhea (18), and kidney irritation (12).

Gastrointestinal ...Orally, gumweed can cause gastric mucosal irritation (2,12) and diarrhea (18).

Renal ...Orally, gumweed can cause kidney irritation (12).

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MULLEIN

General ...Information regarding the adverse effects of mullein is limited. A thorough evaluation of safety outcomes has not been conducted.

Dermatologic ...Two case reports have described dermatitis, with positive patch tests, after topical exposure to the whole plant, or by occupational inhalation of plant dust (92839,97316). In the case of topical exposure, the patient also had positive patch tests to other plants.

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