Vigor 25 by V. Vigor Corporation

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

(Read more about CNIDIUM)

INSUFFICIENT RELIABLE EVIDENCE to RATE

• Age-related macular degeneration (AMD). It is unclear if oral goji berry reduces the risk of developing AMD. Details: A small, unblinded clinical study in healthy adults aged 45 to 65 years shows that consuming goji berries 28 grams five times a week for 90 days improves macular pigment optical density, which is a marker for AMD, when compared to baseline (110767). The validity of this finding is limited by the lack of statistical comparison to the other study group that received a supplement containing lutein and zeaxanthin.
• Cancer. Although there is interest in using oral goji for cancer, there is insufficient reliable information about the clinical effects of goji for this condition.
• Cardiovascular disease (CVD). It is unclear if oral goji improves risk factors for CVD. Details: A meta-analysis of 6 mostly small clinical studies of adults in China shows that consuming goji as polysaccharide extract or juice for 1-3 months modestly improves triglycerides, low-density lipoprotein (LDL) cholesterol, high-density lipoprotein (HDL) cholesterol, and fasting blood glucose but does not impact total cholesterol when compared with no treatment or placebo (110765). Another meta-analysis of 4 small clinical studies in adults also shows that consuming goji polysaccharide extract or goji berries for 1-4 months modestly improves triglycerides and HDL but does not impact total or LDL cholesterol when compared with placebo or healthy eating. Goji also had no impact on systolic or diastolic blood pressure, or markers of oxidative stress (110768). However, the interpretation of the findings from these meta-analyses is limited by the use of variable goji forms and doses, as well as inclusion of studies in heterogeneous patients, including healthy people, patients with diabetes, and patients with metabolic syndrome. Furthermore, most studies were conducted in China; it is unclear if these benefits can be extrapolated to other geographic locations.
• Cognitive function. It is unclear if oral goji berry improves cognition in healthy young individuals. Details: A small clinical crossover study in healthy participants 14-24 years of age shows that taking goji berry fruit water extract (BIOMIX Company) 3600 mg in 3 divided doses daily for 4 weeks might improve certain cognitive measures such as verbal learning, short-term memory, and attention when compared with baseline (105488). The validity of these findings are limited due to incomplete outcome reporting and a lack of statistical comparisons between the treatment and placebo groups.
• Cough. Although there is interest in using oral goji for cough, there is insufficient reliable information about the clinical effects of goji for this purpose.
• Depression. It is unclear if oral goji berry polysaccharide is beneficial for adolescents with subthreshold depression. Details: A small clinical study in adolescents aged approximately 15 years with subthreshold depression in China shows that taking goji berry polysaccharide extract 300 mg daily for 6 weeks modestly improves clinician-assessed depression scores (i.e. Hamilton Depression Scale, HAMD-24) but does not improve self-reported depression scores (i.e. Beck Depression Inventory) or scores assessing sleep quality, psychological distress, or anxiety when compared with placebo (110769). However, these results are from an interim analysis, which limits the interpretation of these findings. Furthermore, it is unclear if results can be extrapolated to patients in other geographic locations.
• Diabetes. It is unclear if oral goji berry polysaccharides improve glycemic control in patients with diabetes. Details: One small clinical study in patients with type 2 diabetes shows that taking goji fruit polysaccharide powder 150 mg twice daily for 3 months results in a slightly lower postprandial glucose area under the curve (AUC), but does not seem to affect insulin levels or insulin resistance, when compared with placebo. A subgroup of patients who were not taking antidiabetes medications had a greater reduction in postprandial blood glucose (92117).
• Dry eye. Although there is interest in using oral goji for dry eye, there is insufficient reliable information about the clinical effects of goji for this purpose.
• Erectile dysfunction (ED). Although there is interest in using oral goji for ED, there is insufficient reliable information about the clinical effects of goji for this condition.
• Hypertension. Although there is interest in using oral goji root bark for hypertension, there is insufficient reliable information about the clinical effects of goji for this condition.
• Obesity. It is unclear if oral goji berry juice improves weight loss. Details: Preliminary clinical research in healthy, overweight adults shows that drinking a specific goji fruit juice (GoChi, FreeLife International LLC) 120 mL daily for 14 days while following a weight loss diet and participating in an exercise program decreases waist circumference by about 4.7 cm more than exercise and diet alone. However, drinking goji berry juice along with diet and exercise does not improve body weight, body mass index, or body fat when compared with diet and exercise alone (52536).
• Quality of life. Small clinical studies suggest that oral goji berry juice may modestly improve quality of life in healthy adults. Details: Small clinical studies in healthy adults suggest that taking a specific standardized goji fruit juice (GoChi, FreeLife International LLC) 120 mL daily for 14-30 days improves subjective measures of energy levels, athletic performance, sleep quality, mental acuity, calmness, feelings of well-being, and gastrointestinal regularity when compared with placebo (17082,52532,52542). These studies were funded by the juice manufacturer.
• Sunburn. It is unclear if oral goji extract can prevent sunburn. Details: A small clinical study in healthy Japanese adults shows that taking goji extract 900 mg daily for 8 weeks reduces and accelerates resolution of erythema after exposure to a standard dose of UVB irradiation when compared with placebo (110770). All study participants were highly UV-sensitive; it is unclear whether these results can be extrapolated to individuals less sensitive to UV irradiation.
• Tinnitus. Although there is interest in using oral goji for tinnitus, there is insufficient reliable information about the clinical effects of goji for this purpose. More evidence is needed to rate goji for these uses.

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POSSIBLY EFFECTIVE

• Angina. Low-quality clinical research shows that oral or intravenous Panax notoginseng may improve the frequency and severity of angina symptoms. Details: Meta-analyses of low-quality clinical research in patients with angina shows that Panax notoginseng administered intravenously or orally 200-400 mg 2-3 times daily for 2-6 weeks, in addition to conventional medicine, increases the number of patients who achieve a 50% improvement in angina pectoris symptoms by approximately 1.2-fold when compared with conventional medicine alone (94321,94326,94378). Panax notoginseng also reduces angina attack frequency by about 2 attacks per week but does not reduce the incidence of intractable angina pectoris (94321).
• Intracranial hemorrhage. Low-quality clinical research shows that intravenous Panax notoginseng saponins may improve recovery and mortality in patients with intracranial hemorrhage. Details: A meta-analysis of low-quality clinical research in patients with intracranial or intracerebral hemorrhage shows that treatment with Panax notoginseng saponins 140-600 mg intravenously daily for 2-10 weeks increases the odds of improvement by 2.7-fold when compared with conventional treatment alone. A subgroup analysis also suggests that treatment within 48 hours reduces the risk of mortality by 55% when compared with conventional treatment alone (94324).
• Stroke. Low-quality clinical research in patients with ischemic stroke shows that oral or intravenous Panax notoginseng, in addition to conventional therapy, may improve recovery, as well as neurologic and functional scores. Details: Two meta-analyses of clinical research in patients with an ischemic stroke shows that treatment with Panax notoginseng, most commonly a specific product (Xuesaitong, Xing Zhong Pharmaceutical Co. Ltd.), 150-1080 mg intravenously daily for 10-42 days, increases the overall response rate and improvement rate by 20% to 21% when compared with conventional medicine alone (94373,109523). Treatment with Panax notoginseng also improved some measures of activities of daily living (109523). Preliminary clinical research in patients with a recent anterior cerebral ischemic stroke shows that taking Panax notoginseng root (sanchitongtshu) extract, containing 100 mg of panaxatriol saponins, orally three times daily with aspirin 50 mg daily for 28 days improves neurological deficit scores and activities of daily living scores when compared with placebo and aspirin (17183).

POSSIBLY INEFFECTIVE

• Myocardial infarction (MI). Low-quality clinical research shows that oral Panax notoginseng may not reduce the risk of MI in patients with coronary heart disease. Details: A meta-analysis of two small clinical trials in patients with existing coronary heart disease shows that that taking a specific Panax notoginseng product (Xuesaitong soft capsule, Shenghuo Pharmaceutical Holdings) 240 mg orally twice daily along with conventional therapy for 4 weeks does not reduce the risk of MI when compared with conventional therapy alone (94321).

INSUFFICIENT RELIABLE EVIDENCE to RATE

• Atherosclerosis. Although there has been interest in using oral Panax notoginseng for atherosclerosis, there is insufficient reliable information about the clinical effects of Panax notoginseng for this purpose.
• Athletic performance. It is unclear if oral Panax notoginseng is beneficial for improving athletic performance. Details: A meta-analysis of small clinical studies in generally healthy adults shows that taking Panax notoginseng 200-1350 mg or ginsenoside Rg1, a constituent of Panax notoginseng, 5 mg orally once daily for 1-30 days before running or cycling increases exercise endurance when compared with control (109672). One clinical study of untrained adults shows that taking Panax notoginseng root powder 1350 mg daily for 30 days increases cycling endurance by at least 7 minutes when compared with baseline (94384). The validity of this study is limited by the lack of a comparator group.
• Bleeding. Although there has been interest in using oral Panax notoginseng for bleeding, there is insufficient reliable information about the clinical effects of Panax notoginseng for this purpose.
• Bruises. Although there has been interest in using topical Panax notoginseng for bruises, there is insufficient reliable information about the clinical effects of Panax notoginseng for this purpose.
• Exercise-induced muscle soreness. It is unclear if oral Panax notoginseng is beneficial for reducing exercise-induced muscle soreness. Details: Preliminary clinical research in well-trained males shows that taking Panax notoginseng, 4 grams orally one hour before a downhill run, then every 4 waking hours for 48 hours, and then twice daily for 48 hours, modestly reduces delayed onset muscle soreness at 96 hours, but not at earlier time points, when compared with baseline (94320). The validity of this study is limited by the lack of a comparator group.
• Hepatitis. Although there has been interest in using oral Panax notoginseng for hepatitis, there is insufficient reliable information about the clinical effects of Panax notoginseng for this purpose.
• Hypertension. Although there has been interest in using oral Panax notoginseng for hypertension, there is insufficient reliable information about the clinical effects of Panax notoginseng for this purpose.
• Nonalcoholic steatohepatitis (NASH). Although there has been interest in using oral Panax notoginseng for NASH, there is insufficient reliable information about the clinical effects of Panax notoginseng for this purpose.
• Osteoarthritis. Oral Panax notoginseng has only been evaluated in combination with other ingredients; its effect when used alone is unclear. Details: Preliminary clinical research in adults with knee osteoarthritis shows that taking two capsules, each containing 400 mg of a combination of Panax notoginseng, Siberian ginseng, and rehmannia, orally daily for 6 weeks moderately improves physical function scores, but not pain or stiffness scores, when compared with placebo (74950).
• Rheumatoid arthritis (RA). Although there has been interest in using oral Panax notoginseng for RA, there is insufficient reliable information about the clinical effects of Panax notoginseng for this purpose.
• Ulcerative colitis. Rectal Panax notoginseng has only been evaluated in combination with other ingredients; its effect when used alone is unclear. Details: Preliminary clinical research in adults admitted to the hospital with mild to moderate ulcerative colitis lesions shows that administering a suppository containing Panax notoginseng and multiple other ingredients rectally for 3 months improves diarrhea and bloody stool symptom scores when compared with placebo. Taking the combination product also reduced recurrence by 79% when compared with placebo. Patients received 2 suppositories twice daily for the first month, 1 suppository twice daily for the second month, and 1 suppository once daily for the third month. Each suppository contained Panax notoginseng 36 grams, cortex phellodendri 120 grams, radix Sanguisorbae 120 grams, arnebia root, 120 grams, radix pulsatillae 120 grams, rhizoma coptidis 120 grams, cortex fraxini 120 grams, rhizoma corydalis, pericarpium papaveris 72 grams, radix sophorae flavescentis 72 grams, and rhizoma bletillae 72 grams (109673).
• Venous thromboembolism (VTE). It is unclear if oral or intravenous Panax notoginseng is beneficial for the prevention of postoperative deep vein thrombosis (DVT). Details: A meta-analysis of randomized controlled trials in adults undergoing surgical treatment for a fracture shows that using a Panax notoginseng injection, alone or in combination with other anticoagulants, for 3-14 days reduces the risk of DVT by 58% when compared with active control, such as low-molecular weight heparin (LMWH) or rivaroxaban (105510). The validity of these findings is limited by the high heterogeneity of the included studies. A prospective study in post-surgical adults using LMWH shows that taking a specific Panax notoginseng tablet (Xuesaitong, Hunan Xiangya Pharmaceutical Company) 100 mg three times daily reduces the risk of DVT by 44% when compared with LMWH alone (109674). The validity of this study is limited by lack of randomization. More evidence is needed to rate Panax notoginseng for these uses.

(Read more about PANAX NOTOGINSENG)

INSUFFICIENT RELIABLE EVIDENCE to RATE

• Cancer. Although there is interest in using oral poria mushroom for cancer, there is insufficient reliable information about the clinical effects of poria mushroom for this condition.
• Chronic fatigue syndrome (CFS). Although there is interest in using oral poria mushroom for CFS, there is insufficient reliable information about the clinical effects of poria mushroom for this condition.
• Chronic kidney disease (CKD). Although there is interest in using oral poria mushroom for CKD, there is insufficient reliable information about the clinical effects of poria mushroom for this condition.
• Coronavirus disease 2019 (COVID-19). Although there has been interest in using oral poria mushroom for COVID-19, there is insufficient reliable information about the clinical effects of poria mushroom for this purpose.
• Dementia. Although there is interest in using oral poria mushroom for dementia, there is insufficient reliable information about the clinical effects of poria mushroom for this condition.
• Diabetes. Oral poria mushroom has only been evaluated in combination with other ingredients; its effect when used alone is unclear. Details: A meta-analysis of generally small clinical trials in patients with type 2 diabetes shows that taking Chinese herbal medicine combinations containing poria mushroom for 2-24 weeks along with hypoglycemic medications modestly reduces fasting blood glucose and glycated hemoglobin levels when compared with control groups taking hypoglycemic agents only. There were also modest improvements in levels of triglycerides and low-density lipoprotein (LDL) cholesterol and in insulin sensitivity (111920). Given the large number of other ingredients in the available formulations, it is unclear if any beneficial effects are related to poria mushroom, other ingredients in the formulation, or their combination.
• Diarrhea. Although there is interest in using oral poria mushroom for diarrhea, there is insufficient reliable information about the clinical effects of poria mushroom for this condition.
• Endometriosis. Although there is interest in using oral poria mushroom for endometriosis, there is insufficient reliable information about the clinical effects of poria mushroom for this condition.
• Influenza. Oral poria mushroom has only been evaluated for influenza vaccine enhancement in combination with other ingredients; its effect when used alone is unclear. Details: Clinical research in healthy adults shows that taking a product containing poria mushroom extract, rosemary extract, and aloe gel powder twice daily for 28 days prior to and following an influenza vaccination does not affect upper respiratory tract illness symptoms, severity, duration, or medication-related use when compared with taking placebo (111921). It is unclear if this study was large enough to detect differences between groups. Also, the effect of poria mushroom itself on influenza vaccine enhancement is unclear.
• Tinnitus. Although there is interest in using oral poria mushroom for tinnitus, there is insufficient reliable information about the clinical effects of poria mushroom for this condition.
• Urinary tract infections (UTIs). Although there is interest in using oral poria mushroom for UTIs, there is insufficient reliable information about the clinical effects of poria mushroom for this use. More evidence is needed to rate poria mushroom for these uses.

(Read more about PORIA MUSHROOM)

INSUFFICIENT RELIABLE EVIDENCE to RATE

• Altitude sickness. It is unclear if oral rhodiola is beneficial for altitude sickness. Details: Preliminary clinical research shows that taking rhodiola 447 mg four times daily for 7 days does not improve blood oxygenation or markers of oxidative stress when compared with placebo in subjects exposed to simulated high-altitude conditions (25402).
• Anthracycline cardiotoxicity. It is unclear if oral rhodiola is beneficial for epirubicin-induced cardiotoxicity. Details: Preliminary clinical research in breast cancer patients shows that taking salidroside, a constituent of rhodiola, 600 mg daily, beginning one week prior to chemotherapy and continuing throughout chemotherapy administration, reduces epirubicin-induced early left ventricular regional systolic dysfunction when compared with placebo (90434).
• Anxiety. It is unclear if oral rhodiola is beneficial for anxiety. Details: Preliminary clinical research in college students with anxiety shows that taking a specific dried rhodiola extract (Vitango, Schwabe Pharma) 200 mg twice daily for 14 days modestly reduces reported levels of anxiety, anger, confusion, negative mood, and stress when compared with a control group. However, rhodiola extract does not seem to improve cognition (96462).
• Arrhythmia. Although there has been interest in using oral rhodiola for arrhythmia, there is insufficient reliable information about the clinical effects of rhodiola for this condition.
• Athletic performance. The evidence related to the use of rhodiola for athletic performance is mixed, although specific standardized extracts might be beneficial for certain performance endpoints. Details: The available evidence for rhodiola in athletic performance includes small clinical trials in recreationally active or trained athletes. Trials using rhodiola extracts standardized to 3% rosavins and 1% salidroside (eg. Finzelberg, GmbH) show that taking 3 mg/kg, 200 mg, or 500 mg prior to exercise testing, either as a single dose or with a 3-day lead-in dose, modestly improves performance endpoints on a cycle ergometer. Improved endpoints included time to exhaustion, peak oxygen use, time to completion, perceived exhaustion, anaerobic capacity, and power (13109,90432,100168). However, in trials in which rhodiola was not taken the morning of testing, or when performance endpoints included forearm endurance or marathon time and recovery, rhodiola 170 mg to 1500 mg daily did not affect perceived exertion, time to exhaustion, or peak oxygen use (15574,19284,90433). A small crossover trial shows that taking 500 mg of rhodiola extract, standardized to 3% rosavins and 1% salidroside, three times daily for 3 days followed by 500 mg 30-minutes before exercise testing increases bench press velocity but decreases bench press repetition volume when compared with placebo (110543). Furthermore, limited evidence suggests that rhodiola extract does not affect muscle strength, speed of limb movement, reaction times, or attention span (13109) but might reduce plasma creatine kinase levels (19284). Also, while some evidence suggests that rhodiola extract can reduce blood lactate levels (19284), other research shows that it increases blood lactate levels after resistance training to a greater degree than placebo (110543). In general, it appears that acute doses of rhodiola may improve specific physical performance parameters, but neither acute nor chronic doses appear to notably improve muscle function. Some research has also assessed rhodiola when used in combination with other ingredients. A small clinical study in trained male cyclists shows that taking a specific combination product (Optygen, First Endurance) containing rhodiola 600 mg (standardized to 3% rosavin and 2.5% salidroside) plus cordyceps 2000 mg (standardized to 7% cordycepic acid), daily for 6 days followed by a half-dose daily for 7 days does not improve time to exhaustion or muscle tissue oxygen saturation when compared with placebo (15573). Additionally, a small crossover study in healthy, recreationally active adult males shows that taking a 30:70 blend of rhodiola and maral root extracts at a dose of 350 mg or 175 mg, ninety minutes prior to isokinetic leg strength exercises, does not influence fatigability, performance variables, or affective responses when compared with placebo (105855).
• Bladder cancer. Although there has been interest in using oral rhodiola for bladder cancer, there is insufficient reliable information about the clinical effects of rhodiola for this condition.
• Chronic fatigue syndrome (CFS). Although there has been interest in using oral rhodiola for CFS, there is insufficient reliable information about the clinical effects of rhodiola for this condition.
• Coronavirus disease 2019 (COVID-19). Oral rhodiola extract has only been evaluated in combination with other ingredients; its effect when used alone is unclear. Details: A small clinical study in adults a with confirmed history of COVID-19 infection and at least 3 of 9 long COVID-19 symptoms for at least 30 days, but no longer than 3 months, after discharge shows that taking a specific combination product (ADAPT-232/Chisan, Swedish Herbal Institute), containing rhodiola extract 90 mg, schisandra extract 300 mg, and eleuthero extract 78 mg, twice daily for 14 days increases walking duration by around 13 minutes but does not reduce the duration of cough, fatigue, headache, pain, or other respiratory problems when compared with placebo (109635). It is unclear if these findings are due to rhodiola, other ingredients, or the combination.
• Depression. It is unclear if oral rhodiola is beneficial for depression. Details: Clinical practice guidelines from the World Federation of Societies of Biological Psychiatry (WFSBP) and the Canadian Network for Mood and Anxiety Treatments (CANMAT) state that rhodiola is not currently recommended for monotherapy or adjunctive use in major depressive disorder based on mixed evidence (110318). Clinical research shows that taking a specific rhodiola extract (SHR-5, Swedish Herbal Institute) 340 mg once or twice daily reduces symptoms of mild-to-moderate depression after 6 weeks of treatment when compared with placebo. Rhodiola decreased overall depressive symptoms, emotional instability, insomnia, and somatization; however, it did not improve feelings of self-esteem (17616). Another small clinical study in patients with major depressive disorder of moderate severity shows that adding a higher dose of rhodiola 600 mg to sertraline daily for 12 weeks improves depressive symptoms when compared with either sertraline alone or sertraline with a lower dose of rhodiola (300 mg) (102283).
• Diabetes. Although there has been interest in using oral rhodiola for diabetes, there is insufficient reliable information about the clinical effects of rhodiola for this condition.
• Fatigue. Preliminary clinical research suggests that oral rhodiola extract decreases fatigue in stressful situations. Details: Most preliminary clinical trials have evaluated a specific rhodiola root extract (SHR-5, Swedish Herbal Institute) in various doses and populations. Taking 50 mg of this product twice daily reduces mental fatigue and improves subjective well-being in students during an examination period (1927). Taking 144 mg twice daily for 7 days reduces fatigue, but not stress, in university students (19287). In night shift workers, 170 mg daily for 2 weeks reduces feelings of fatigue and improves mental performance (6877). In military cadets, a single dose of 370-555 mg after 24 hours without sleep improves tests of mental processing and short-term memory (16411). Finally, taking 576 mg daily for 28 days decreases symptoms of fatigue and increases attention, but does not improve quality of life or symptoms of depression, in patients with stress-related fatigue (19286). Other clinical research shows that taking a different rhodiola root extract (Rhodaxon, Teknofarm), 660 mg daily for 20 days, reduces mental fatigue by 30% in first-year university students (19288). Clinical research using another specific dried rhodiola extract (Vitango, Schwabe Pharma) also shows that taking 200 mg twice daily for 12 weeks modestly reduces perceived levels of stress, burnout, and fatigue when compared to baseline in adults experiencing symptoms of burnout. The validity of these findings is limited by the lack of a control group (96459). Rhodiola extract has also been studied in combination schisandra berry extract and Siberian ginseng root extract (ADAPT-232, Swedish Herbal Institute). However, evidence is mixed, with one study showing that 270 mg daily improves attention, accuracy, and speed in tired individuals performing stressful cognitive tasks (19289), and another study showing that 280 mg daily for 7 days does not reduce mental fatigue or stress in university students (19287).
• Generalized anxiety disorder (GAD). It is unclear if oral rhodiola is beneficial for GAD. Details: A small clinical study shows that taking a specific rhodiola extract (Rhodax, Bodyonics Ltd.) 170 mg twice daily for 10 weeks decreases anxiety and depression and improves symptom scores when compared to baseline in patients with GAD (16410). The validity of these findings is limited by the lack of a comparator group.
• Hearing loss. Although there has been interest in using oral rhodiola for hearing loss, there is insufficient reliable information about the clinical effects of rhodiola for this purpose.
• Hyperlipidemia. Although there has been interest in using oral rhodiola for hyperlipidemia, there is insufficient reliable information about the clinical effects of rhodiola for this condition.
• Menopausal symptoms. Oral rhodiola has only been evaluated in combination with other ingredients; its effect when used alone is unclear. Details: Preliminary clinical research in patients experiencing menopausal symptoms shows that taking a combination product (Menopause Relief EP, EuroPharma USA) containing rhodiola extract 400 mg and black cohosh extract 13 mg daily for 12 weeks improves psychological symptoms of menopause when compared with placebo or black cohosh alone (103269). It is unclear if these findings are due to rhodiola, black cohosh, or the combination.
• Premature ejaculation. Oral rhodiola has only been evaluated in combination with other ingredients; its effect when used alone is unclear. Details: Preliminary clinical research in adults with lifelong premature ejaculation shows that taking a specific combination product (EndEP) containing rhodiola 200 mg, folic acid 200 mcg, zinc 10 mg, and biotin 50 mcg once daily for 90 days increases time to ejaculation by about 29 seconds and improves control of ejaculation in about 60% of participants when compared to baseline. These improvements disappear within 90 days of discontinuing treatment. The validity of these findings is limited by the lack of a control group (96460).
• Sexual arousal. Although there has been interest in using oral rhodiola for improving sexual arousal, there is insufficient reliable information about the clinical effects of rhodiola for this condition.
• Stress. Preliminary clinical research suggests that oral rhodiola extract reduces feelings of stress. Details: Preliminary clinical research in adults with general stress shows that taking a specific dried rhodiola extract (Vitango, Schwabe Pharma) modestly reduces levels of stress in certain situations. Taking 200 mg twice daily before breakfast and lunch for 4 weeks improves stress, disability, and functional impairment when compared to baseline (90431). A small study in college students with anxiety shows that taking 200 mg twice daily for 14 days modestly reduces reported levels of stress, anxiety, anger, confusion, and negative mood when compared to a control group (96462). In adults experiencing symptoms of burnout, taking this specific extract 200 mg twice daily for 12 weeks modestly reduces perceived levels of stress, burnout, and fatigue and improves sexual satisfaction when compared to baseline. The validity of these findings is limited by the lack of a control group (96459). Rhodiola has also been evaluated in combination with other ingredients in individuals with stress. A small clinical study in healthy adults with chronic stress shows that taking a specific combination product (Mg-Teadiola, Sanofi-Aventis), containing rhodiola extract 222 mg, magnesium 150 mg, green tea extract 125 mg (providing theanine 50 mg), vitamin B6 0.7 mg, vitamin B9 0.1 mg, and vitamin B12 1.25 mcg, daily for 4 weeks reduces stress scores when compared with placebo (108672). It is unclear if these findings are due to rhodiola, other ingredients, or the combination.
• Tuberculosis. Although there has been interest in using oral rhodiola for tuberculosis, there is insufficient reliable information about the clinical effects of rhodiola for this condition.
• Upper respiratory tract infection (URTI). Although there has been interest in using oral rhodiola for URTI prevention, there is insufficient reliable information about the clinical effects of rhodiola for this purpose. More evidence is needed to rate rhodiola for these uses.

(Read more about RHODIOLA)

POSSIBLY INEFFECTIVE

• Menopausal symptoms. Topical wild yam does not seem to improve menopausal symptoms. Details: Wild yam applied topically as a cream in menopausal patients for 3 months appears to be no better than placebo for relieving vasomotor symptoms, such as hot flashes and night sweats. It also does not appear to change serum follicle stimulating hormone (FSH), estradiol, or progesterone levels (10989).

INSUFFICIENT RELIABLE EVIDENCE to RATE

• Cognitive function. It is unclear if oral wild yam is beneficial for improving cognitive function in healthy adults. Details: Preliminary clinical research in healthy adults shows that taking a specific wild yam extract (Diopower 15, Anti-Aging Pro Corporation) orally, 50 mg (containing diosgenin 8 mg) daily for 12 weeks, modestly improves overall measures of cognitive function and semantic fluency when compared with placebo (96724).
• Dysmenorrhea. Although there is interest in using oral or topical wild yam for dysmenorrhea, there is insufficient reliable information about the clinical effects of wild yam for this condition.
• Gallbladder disease. Although there is interest in using oral wild yam for gallbladder disease, there is insufficient reliable information about the clinical effects of wild yam for this condition.
• Infertility. Although there is interest in using oral or topical wild yam for infertility, there is insufficient reliable information about the clinical effects of wild yam for this condition.
• Osteoporosis. Although there is interest in using oral wild yam for osteoporosis, there is insufficient reliable information about the clinical effects of wild yam for this condition.
• Postmenopausal conditions. Although there is interest in using oral wild yam for postmenopausal conditions, there is insufficient reliable information about the clinical effects of wild yam for these conditions.
• Premenstrual syndrome (PMS). Although there is interest in using oral wild yam for PMS, there is insufficient reliable information about the clinical effects of wild yam for this condition.
• Rheumatoid arthritis (RA). Although there is interest in using oral wild yam for RA, there is insufficient reliable information about the clinical effects of wild yam for this condition.
• Sexual dysfunction. Although there is interest in using oral wild yam for sexual dysfunction, there is insufficient reliable information about the clinical effects of wild yam for this condition. More evidence is needed to rate wild yam for these uses.

(Read more about WILD YAM)

There is insufficient reliable information available about the safety of cnidium.

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

(Read more about CNIDIUM)

POSSIBLY SAFE ...when goji fruit preparations are used orally and appropriately, short-term. Goji berry whole fruit, boiled or steamed, has been used with apparent safety at a dose of 15 grams daily for 16 weeks (105489). Other goji berry products have also been used with apparent safety in clinical research, including a specific goji fruit juice (GoChi, FreeLife International) 120 mL daily for 30 days (52532), a goji fruit polysaccharide 300 mg daily for 3 months (92117), and a specific milk-based formulation of goji berry (Lacto-Wolfberry, Nestlé Research Center) for 3 months (52539). There has been some concern about the atropine content of goji; however, most analyses show that levels of atropine in goji berries from China and Thailand are far below potentially toxic levels (52524,94667). There is insufficient reliable information available about the safety of oral use of other parts of the goji plant.

PREGNANCY AND LACTATION:
Insufficient reliable information available. Some animal research shows that goji fruit may stimulate the uterus (12). However, this has not been reported in humans. Until more is known, avoid using during pregnancy or lactation.

(Read more about GOJI)

POSSIBLY SAFE ...when used orally and appropriately, short-term. Panax notoginseng has been used with apparent safety in doses of 100-400 mg 1-3 times daily for up to 6 weeks (17183,94321,94326,94378,94384,109674). ...when given as an injection, under medical supervision. Panax notoginseng extract has been used with apparent safety in doses of 400-800 mg daily for up to 10 weeks (94324,94326,94373,98976,109523). There is insufficient reliable information available about the safety of Panax notoginseng when administered rectally.

PREGNANCY AND LACTATION: LIKELY UNSAFE
when used orally (5559). Ginsenoside Rb1, an active constituent of Panax notoginseng, has teratogenic effects in animal models (10447).

(Read more about PANAX NOTOGINSENG)

There is insufficient reliable information available about the safety of poria mushroom.

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

(Read more about PORIA MUSHROOM)

POSSIBLY SAFE ...when used orally and appropriately, short-term. There is some clinical research showing that taking rhodiola extract up to 300 mg twice daily has been used without adverse effects for up to 12 weeks (13109,16410,17616,71172,96459,102283,103269).

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

(Read more about RHODIOLA)

POSSIBLY SAFE ...when used orally. A dose of 50 mg (containing 8 mg diosgenin) has been used with apparent safety for 12 weeks (12,96724). ...when used topically. A wild yam cream has been used with apparent safety for 3 months (10989).

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

(Read more about WILD YAM)

ANTICOAGULANT/ANTIPLATELET DRUGS Interaction Rating = Moderate Be cautious with this combination. Severity = Moderate •  Occurrence = Possible •  Level of Evidence = D Laboratory research shows that osthol, a constituent of cnidium, inhibits blood clotting and the activity of platelets (103851). Theoretically, cnidium might increase the risk of bleeding when used with antiplatelet or anticoagulant drugs.  Details Some anticoagulant or antiplatelet drugs include aspirin, clopidogrel (Plavix), dalteparin (Fragmin), enoxaparin (Lovenox), heparin, ticlopidine (Ticlid), warfarin (Coumadin), and others.

(Read more about CNIDIUM)

ANTIDIABETES DRUGS Interaction Rating = Minor Be watchful with this combination. Severity = Mild •  Occurrence = Possible •  Level of Evidence = B Theoretically, concomitant use of goji fruit polysaccharides or goji root bark with antidiabetes drugs might have additive effects.  Details Animal and in vitro research show that goji root bark and fruit polysaccharides might have hypoglycemic effects (7126,92118,94667). However, clinical research has only shown that taking goji fruit polysaccharides with or without antidiabetes drugs modestly reduces postprandial glucose when compared with control, with no reports of hypoglycemia (92117).

ANTIHYPERTENSIVE DRUGS Interaction Rating = Moderate Be cautious with this combination. Severity = Moderate •  Occurrence = Possible •  Level of Evidence = D Theoretically, concomitant use of goji root bark, but not goji fruit, with antihypertensive drugs might have additive effects.  Details Animal and in vitro research suggest that goji root bark has hypotensive effects (7126,94667). However, goji fruit juice does not appear to reduce systolic or diastolic blood pressure in humans (17082).

CYTOCHROME P450 2C19 (CYP2C19) SUBSTRATES Interaction Rating = Moderate Be cautious with this combination. Severity = Moderate •  Occurrence = Possible •  Level of Evidence = D Theoretically, goji berry might inhibit CYP2C19 and reduce metabolism of CYP2C19 substrates.  Details In vitro research shows that goji berry tincture and juice inhibit CYP2C19 enzymes (105486). Concomitant use with goji may decrease metabolism and increase levels of CYP2C19 substrates. However, this has not been reported in humans.

CYTOCHROME P450 2C9 (CYP2C9) SUBSTRATES Interaction Rating = Moderate Be cautious with this combination. Severity = Moderate •  Occurrence = Possible •  Level of Evidence = D Theoretically, goji berry might inhibit CYP2C9 and reduce metabolism of CYP2C9 substrates.  Details In vitro research shows that goji berry tincture and juice inhibit CYP2C9 enzymes (105486). Additionally, multiple case reports suggest that goji berry concentrated tea and juice inhibit the metabolism of warfarin, a CYP2C9 substrate (7158,105462). Concomitant use with goji may decrease metabolism and increase levels of CYP2C9 substrates.

CYTOCHROME P450 2D6 (CYP2D6) SUBSTRATES Interaction Rating = Moderate Be cautious with this combination. Severity = Moderate •  Occurrence = Possible •  Level of Evidence = D Theoretically, goji berry might inhibit CYP2D6 and reduce metabolism of CYP2D6 substrates.  Details In vitro research shows that goji berry juice inhibits CYP2D6 enzymes (105486). Concomitant use with goji may decrease metabolism and increase levels of CYP2D6 substrates. However, this 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 Theoretically, goji berry might inhibit CYP3A4 and reduce metabolism of CYP3A4 substrates.  Details In vitro research shows that goji berry juice inhibits CYP3A4 enzymes (105486). Concomitant use with goji may decrease metabolism and increase levels of CYP3A4 substrates. However, this has not been reported in humans.

FLECAINIDE (Tambocor) Interaction Rating = Moderate Be cautious with this combination. Severity = High •  Occurrence = Possible •  Level of Evidence = D Theoretically, goji berry might increase the levels and clinical effects of flecainide.  Details In one case report, a 75-year-old patient stable on flecainide and warfarin presented to the emergency room with fainting and pleomorphic arrhythmia caused by flecainide toxicity. Flecainide toxicity was attributed to drinking 1-2 glasses of concentrated goji tea daily for 2 weeks. Theoretically, goji may have inhibited the cytochrome P450 2D6 (CYP2D6) metabolism of flecainide (105462).

WARFARIN (Coumadin) Interaction Rating = Major Do not take this combination. Severity = High •  Occurrence = Probable •  Level of Evidence = D Goji can increase the effects of warfarin and possibly increase the risk of bleeding.  Details There are at least 5 case reports of increased international normalized ratio (INR) in patients stabilized on warfarin who began drinking goji juice, concentrated goji tea, or goji wine (7158,16529,23896,105462,105487). Goji may inhibit the metabolism of warfarin by cytochrome P450 2C9 (CYP2C9) (7158).

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ASPIRIN Interaction Rating = Moderate Be cautious with this combination. Severity = Moderate •  Occurrence = Possible •  Level of Evidence = D Theoretically, taking Panax notoginseng concomitantly with aspirin may increase the risk of adverse effects from both products.  Details Animal research shows that taking Panax notoginseng extract with aspirin increases blood levels of salicylic acid by approximately 50% and blood levels of Panax notoginseng by 75% to 196%. This effect may be due to increased absorption of both products (94322,96219).

CAFFEINE Interaction Rating = Moderate Be cautious with this combination. Severity = Moderate •  Occurrence = Possible •  Level of Evidence = D Theoretically, taking Panax notoginseng may decrease the levels and clinical effects of caffeine.  Details Animal research shows that administering Panax notoginseng intravenously for 7 days before intraperitoneal injection of caffeine can decrease maximal blood levels of caffeine by 37%. This interaction is attributed to the ability of Panax notoginseng to increase the activity of cytochrome P450 1A2 (CYP1A2) enzymes (94319).

CYTOCHROME P450 1A2 (CYP1A2) SUBSTRATES Interaction Rating = Moderate Be cautious with this combination. Severity = Moderate •  Occurrence = Possible •  Level of Evidence = D Theoretically, taking Panax notoginseng might reduce the levels and clinical effects of CYP1A2 substrates.  Details Animal research shows that administering Panax notoginseng intravenously for 7 days before intraperitoneal injection of caffeine can decrease maximal blood levels of caffeine by 37%. This interaction was attributed to the ability of Panax notoginseng to increase the activity of CYP1A2 (94319).

WARFARIN (Coumadin) Interaction Rating = Moderate Be cautious with this combination. Severity = Moderate •  Occurrence = Possible •  Level of Evidence = D Theoretically, taking Panax notoginseng concomitantly with warfarin may increase the risk of bleeding.  Details Animal research shows that taking Panax notoginseng concomitantly with warfarin increases plasma warfarin levels, prothrombin time, and international normalized ratio when compared with control. In vitro research also suggests that Panax notoginseng may downregulate expression of cytochrome P450 3A4 enzymes, which may affect warfarin metabolism (109676).

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ANTICHOLINERGIC DRUGS Interaction Rating = Moderate Be cautious with this combination. Severity = Moderate •  Occurrence = Possible •  Level of Evidence = D Theoretically, poria mushroom might decrease the clinical effects of anticholinergic drugs.  Details In animal research, poria mushroom essential oil reduces acetylcholinesterase activity (111917). This interaction has not been shown in humans.

CHOLINERGIC DRUGS Interaction Rating = Moderate Be cautious with this combination. Severity = Moderate •  Occurrence = Possible •  Level of Evidence = D Theoretically, poria mushroom might have additive effects when used with cholinergic drugs.  Details In animal research, poria mushroom essential oil reduces acetylcholinesterase activity (111917). This interaction has not been shown in humans.

CNS DEPRESSANTS Interaction Rating = Moderate Be cautious with this combination. Severity = Moderate •  Occurrence = Possible •  Level of Evidence = D Theoretically, taking poria mushroom extract may enhance the therapeutic and adverse effects of sedatives.  Details Animal research shows that poria mushroom extract has sedative properties (111916). This interaction has not been shown in humans.

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ANTIDIABETES DRUGS Interaction Rating = Moderate Be cautious with this combination. Severity = High •  Occurrence = Possible •  Level of Evidence = D Theoretically, taking rhodiola with antidiabetes drugs might increase the risk of hypoglycemia.  Details In vitro and animal research shows that rhodiola extract can decrease blood glucose due to alpha-glucosidase activity (15717,15719).

ANTIHYPERTENSIVE DRUGS Interaction Rating = Moderate Be cautious with this combination. Severity = Moderate •  Occurrence = Possible •  Level of Evidence = D Theoretically, taking rhodiola with antihypertensive drugs might increase the risk of hypotension.  Details In vitro and animal research shows that rhodiola extract inhibits angiotensin-converting enzyme (ACE) and might lower blood pressure (15719,19495).

CYTOCHROME P450 1A2 (CYP1A2) SUBSTRATES Interaction Rating = Minor Be watchful with this combination. Severity = Mild •  Occurrence = Possible •  Level of Evidence = B Theoretically, rhodiola might increase levels of drugs metabolized by CYP1A2.  Details In vitro research shows that rhodiola inhibits CYP1A2. This effect is highly variable and appears to be dependent on the rhodiola product studied (96461). However, a clinical study in healthy young males found that taking rhodiola extract 290 mg daily for 14 days does not inhibit the metabolism of caffeine, a CYP1A2 substrate (96463).

CYTOCHROME P450 2C9 (CYP2C9) SUBSTRATES Interaction Rating = Moderate Be cautious with this combination. Severity = Moderate •  Occurrence = Possible •  Level of Evidence = B Theoretically, rhodiola might increase levels of drugs metabolized by CYP2C9.  Details In vitro research shows that rhodiola inhibits CYP2C9. This effect is highly variable and appears to be dependent on the rhodiola product studied (96461). Also, a clinical study in healthy young males found that taking rhodiola extract 290 mg daily for 14 days reduces the metabolism of losartan, a CYP2C9 substrate, by 21% after 4 hours (96463).

CYTOCHROME P450 3A4 (CYP3A4) SUBSTRATES Interaction Rating = Minor Be watchful with this combination. Severity = Mild •  Occurrence = Possible •  Level of Evidence = B Theoretically, rhodiola might increase levels of drugs metabolized by CYP3A4.  Details In vitro research shows that rhodiola inhibits CYP3A4 (19497,96461). This effect is highly variable and appears to be dependent on the rhodiola product studied (96461). However, a clinical study in healthy young males found that taking rhodiola extract 290 mg daily for 14 days does not inhibit the metabolism of midazolam, a CYP3A4 substrate (96463).

IMMUNOSUPPRESSANTS Interaction Rating = Moderate Be cautious with this combination. Severity = High •  Occurrence = Possible •  Level of Evidence = D Theoretically, rhodiola use might interfere with immunosuppressive therapy.  Details In vitro and animal research show that rhodiola has immunostimulatory effects (19498,19499,19500,19501).

LOSARTAN (Cozaar) Interaction Rating = Moderate Be cautious with this combination. Severity = Moderate •  Occurrence = Probable •  Level of Evidence = B Rhodiola might increase the levels and adverse effects of losartan.  Details A clinical study in healthy young males found that taking rhodiola extract 290 mg daily for 14 days reduces the metabolism of losartan, a CYP2C9 substrate, by 21% after 4 hours (96463).

P-GLYCOPROTEIN SUBSTRATES Interaction Rating = Moderate Be cautious with this combination. Severity = Moderate •  Occurrence = Possible •  Level of Evidence = D Theoretically, rhodiola might increase levels of P-glycoprotein substrates.  Details In vitro research shows that rhodiola inhibits P-glycoprotein (19497). Theoretically, using rhodiola with P-glycoprotein substrates might increase drug levels and potentially increase the risk of adverse effects.

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ESTROGENS Interaction Rating = Moderate Be cautious with this combination. Severity = Moderate •  Occurrence = Possible •  Level of Evidence = D Theoretically, wild yam might increase or decrease the effects of estrogen.  Details Wild yam root shows estrogenic and anti-estrogenic effects in vitro (6180,70411,96723,96725). Theoretically, wild yam might interfere with hormone therapy.

(Read more about WILD YAM)

General ...Orally, cnidium has been reported to cause mild symptoms of bitter mouth, drowsiness, and stomach discomfort (103851).

Gastrointestinal ...Orally, cnidium has been reported to cause bitter mouth and stomach discomfort (103851).

Neurologic/CNS ...Orally, cnidium has been reported to cause drowsiness (103851).

(Read more about CNIDIUM)

General ...Orally, goji fruit seems to be well tolerated.
Serious Adverse Effects (Rare):
Orally: Allergic reactions including anaphylaxis.

Dermatologic ...A case of photosensitivity secondary to consumption of goji berries has been reported. The patient presented with a pruriginous eruption that had lasted for 2 weeks. The patient had been taking goji berries for 5 months and cat's claw for 3 months. Upon testing, it was revealed that the patient tested positive to goji berries in a photoprovocation test, but not to cat's claw (40263).

Hepatic ...Orally, consumption of goji berries has been associated with a single case report of autoimmune hepatitis (52541). A case of acute hepatitis has also been reported in a female who consumed 2 ounces of a specific combination product (Euforia, Nuverus International) containing goji berry, pomegranate, curcumin, green tea, noni, acai berry, aloe vera, blueberry, resveratrol, mangosteen, and black seed, daily for one month. It is unclear whether the liver injury was caused by goji berry, other ingredients, or the combination (90125).

Immunologic ...Several cases of allergic reactions secondary to consumption of goji berries have been reported. Symptoms included facial angioedema with dyspnea, pharyngeal itching, itching in the mouth, ears, and axilla, labial angioedema, and perioral skin rash (92116). Anaphylaxis has also been reported (52538).

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General ...Panax notoginseng seems to be generally well tolerated when used orally or intravenously.
Most Common Adverse Effects:
Orally: Dry mouth, flushed skin, insomnia, nausea, nervousness, rash, vomiting.
Intravenously: Headache, itching, rash.
Serious Adverse Effects (Rare):
Intravenously: Fever, pustular drug eruption.

Dermatologic ...Orally, Panax notoginseng can cause flushed skin (5558). When given orally or intravenously, rash has been reported (94321,94324,94326,94378,98976). There is a case of interstitial granulomatous drug reaction in a 73-year-old male who had been using oral Panax notoginseng extract for 2 months. The condition repeated after 5 days of intravenous use at a later time. The skin condition gradually cleared after use of the product was discontinued (94316). In a retrospective review of hospital records of 30,884 patients, a specific Xueshuantong injection (XSTI) containing Panax notoginseng saponins was associated with a 4% incidence of skin reactions, including redness, itching, and maculopapules (98976).

Gastrointestinal ...Orally and intravenously, Panax notoginseng can cause dry mouth, nausea, and vomiting (5558,94321,98976). In one case report, a patient developed a large submucosal hematoma extending from the hypopharynx to lower esophagus after taking one oral dose of an unknown quantity of Panax notoginseng and hirudin (109671). It is unclear if this event was due to Panax notoginseng, hirudin, or other factors.

Immunologic ...Intravenously, Panax notoginseng saponins have been associated with five cases of pustular drug eruption due to acute generalized exanthematous pustulosis. The skin eruption was associated with fever and an increased neutrophil count in some cases. Symptoms were deemed to be probably or likely due to the Panax notoginseng product (94327). In a retrospective review of hospital records of 30,884 patients, a specific Xueshuantong injection (XSTI) containing Panax notoginseng saponins was associated with a fever frequency of 0.2%, edema frequency of 0.1%, and anaphylactic reactions in 0.03% (98976).

Neurologic/CNS ...Orally, Panax notoginseng can cause nervousness and insomnia (5558). Intravenously, Panax notoginseng has been reported to cause headache (94326,94378). In a retrospective review of hospital records of 30,884 patients, a specific Xueshuantong injection (XSTI) containing Panax notoginseng saponins was associated with a headache frequency of 0.3% and paresthesia frequency of 0.1% (98976).

(Read more about PANAX NOTOGINSENG)

General ...Orally, poria mushroom seems to be well tolerated. However, a thorough evaluation of safety outcomes has not been conducted.

Immunologic ...Allergic reactions have been reported rarely, including allergic rhinitis and allergic asthma (12).

(Read more about PORIA MUSHROOM)

General ...Orally, rhodiola seems to be well tolerated.
Most Common Adverse Effects:
Orally: Dizziness, increased or decreased production of saliva.

Gastrointestinal ...Orally, rhodiola extract may cause dry mouth or excessive saliva production (16410,16411).

Neurologic/CNS ...Orally, rhodiola extract can cause dizziness (16410).

(Read more about RHODIOLA)

General ...Orally, wild yam is generally well tolerated.
Most Common Adverse Effects:
Orally: Fever, headache, upset stomach, and vomiting.
Serious Adverse Effects (Rare):
Orally: Anaphylaxis.

Gastrointestinal ...Orally, wild yam can cause upset stomach and vomiting, especially at higher doses (12,86450).

Hematologic ...In one case report, a 55-year-old female with protein S deficiency and systemic lupus erythematosus (SLE) had temporary vision loss in the left eye from hemiretinal vein thrombosis 3 days after taking a combination phytoestrogen product containing wild yam 276 mg, dong quai 100 mg, red clover 250 mg, and black cohosh 250 mg (13155). It is unclear if wild yam contributed to this event.

Immunologic ...There are three case reports of anaphylaxis after ingestion of cooked wild yam (96722).

Neurologic/CNS ...Orally, wild yam can cause headache and fever, especially at higher doses (86450).

(Read more about WILD YAM)