Below is general information about the effectiveness of the known ingredients contained in the product Dental Health Tea. Some ingredients may not be listed. This information does NOT represent a recommendation for or a test of this specific product as a whole.
INSUFFICIENT RELIABLE EVIDENCE to RATE
INSUFFICIENT RELIABLE EVIDENCE to RATE
INSUFFICIENT RELIABLE EVIDENCE to RATE
INSUFFICIENT RELIABLE EVIDENCE to RATE
INSUFFICIENT RELIABLE EVIDENCE to RATE
Below is general information about the safety of the known ingredients contained in the product Dental Health Tea. Some ingredients may not be listed. This information does NOT represent a recommendation for or a test of this specific product as a whole.
LIKELY SAFE ...when used orally in amounts commonly found in foods. Hibiscus sabdariffa has Generally Recognized As Safe (GRAS) status for use in foods in the US (4912).
POSSIBLY SAFE ...when used orally and appropriately in medicinal amounts. Hibiscus sabdariffa tea has been safely consumed in amounts of up to 720 mL daily for up to 6 weeks (16894,93805,93814). Hibiscus sabdariffa extracts, including a specific Hibiscus sabdariffa leaf extract (Green Chem), have also been safely used in doses of up to 1000 mg daily for up to 90 days (17415,54989,93805,93809,105307).
CHILDREN: POSSIBLY SAFE
when used orally and appropriately.
Hibiscus sabdariffa calyx powder has been used with apparent safety at a dose of 2 grams three times daily for 4 weeks by adolescents aged 12-18 years (93816).
PREGNANCY: POSSIBLY UNSAFE
when used orally.
Hibiscus sabdariffa is thought to be a menstrual stimulant, and might have abortifacient effects (19).
LACTATION: POSSIBLY UNSAFE
when used orally in large amounts.
Animal research found that administering large doses of Hibiscus sabdariffa during lactation decreases food and water intake during pregnancy and delays puberty in offspring (93810); however, this has not been assessed in humans.
LIKELY SAFE ...when used in amounts commonly found in foods. Lemon has Generally Recognized as Safe (GRAS) status in the US (4912).
POSSIBLY SAFE ...when inhaled in amounts used for aromatherapy, short-term. Lemon essential oil has been used with apparent safety as aromatherapy for up to 2 weeks in clinical research (93475,98128,98129). There is insufficient reliable information available about the safety of lemon when used topically, or when used orally or intranasally in medicinal amounts.
PREGNANCY AND LACTATION:
Insufficient reliable information available.
Avoid using in amounts greater than those typically found in foods.
LIKELY SAFE ...when used orally in amounts commonly found in foods. Parsley has Generally Recognized as Safe (GRAS) status in the US (4912).
POSSIBLY SAFE ...when used orally and appropriately in medicinal amounts, short-term (12,13173).
LIKELY UNSAFE ...when used orally in very large doses e., 200 grams). Parsley oil contains significant amounts of the potentially toxic constituents, apiole and myristicin (11). Apiole can cause blood dyscrasias, kidney toxicity, and liver toxicity; myristicin can cause giddiness and hallucinations (4). ...when parsley seed oil is used topically. Applying parsley seed oil to the skin can cause photodermatitis upon sun exposure (4). There is insufficient reliable information available about the safety of the topical use of parsley leaf and root.
PREGNANCY: LIKELY UNSAFE
when used orally in medicinal amounts.
Parsley has been used orally as an abortifacient and to stimulate menstrual flow (4,12,515,19104,92873). Population evidence suggests that maternal intake of An-Tai-Yin, an herbal combination product containing parsley and dong quai, during the first trimester increases the risk of congenital malformations of the musculoskeletal system, connective tissue, and eyes (15129).
LACTATION:
Insufficient reliable information available; avoid using.
LIKELY SAFE ...when rose hip extract is used orally in the amounts found in foods. Rose hip extract has Generally Recognized as Safe (GRAS) status in the US (4912). ...when rose hip from Rosa canina is used orally and appropriately in medicinal amounts. A specific formulation of rose hip powder from Rosa canina (LitoZin/i-flex, Hyben Vital), taken in doses of up to 2.5 grams (5 capsules) twice daily, has been safely used for up to 6 months (17416,71641,71646,71658,71660,71661,104557). Rose hip powder from Rosa canina, 40 grams daily mixed in apple juice, has been used safely for up to 6 weeks (18104). Rose hip powder from Rosa canina, 500 mg twice daily for 20 days, has also been safely used (97938).
POSSIBLY SAFE ...when rose hip from Rosa damascena is used orally and appropriately in medicinal amounts. Rose hip extract from Rosa damascena has been used safely in doses of 200 mg every 6 hours for 3 days (104555). There is insufficient reliable information available about the safety of medicinal amounts of rose hip from other Rosa species. There is also insufficient reliable information available about the safety of rose hip when used topically.
PREGNANCY AND LACTATION:
There is insufficient reliable information available about the safety of rose hip when used orally or topically in medicinal amounts; avoid using in amounts greater than those found in foods.
LIKELY SAFE ...when sweet orange juice or fruit is used orally in amounts commonly found in foods (1310,3340,15171,92309,114401).
POSSIBLY SAFE ...when the essential oil of sweet orange is inhaled as aromatherapy, short-term (35735,58060,90505,105455). There is insufficient reliable information available about the safety of sweet orange peel when used orally.
CHILDREN: LIKELY SAFE
when sweet orange juice or fruit is used orally in amounts commonly found in foods.
CHILDREN: POSSIBLY UNSAFE
when the sweet orange peel is used orally in excessive amounts.
There have been reports of intestinal colic, convulsions, and death in children given large amounts of sweet orange peel (11).
PREGNANCY AND LACTATION: LIKELY SAFE
when sweet orange juice or fruit is used orally in amounts commonly found in foods (1310,3340).
Below is general information about the interactions of the known ingredients contained in the product Dental Health Tea. Some ingredients may not be listed. This information does NOT represent a recommendation for or a test of this specific product as a whole.
Theoretically, taking Hibiscus sabdariffa with acetaminophen might decrease the clinical effects of acetaminophen.
 Details
There is some evidence that consuming a Hibiscus sabdariffa beverage (Zobo drink) before taking acetaminophen can decrease the elimination half-life of acetaminophen. Hibiscus sabdariffa does not seem to decrease maximum concentration or area under the curve of acetaminophen (12184). The clinical significance of this is unknown.
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Theoretically, taking Hibiscus sabdariffa with antidiabetes drugs might increase the risk of hypoglycemia.
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Theoretically, taking Hibiscus sabdariffa with antihypertensive drugs might increase the risk of hypotension.
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Taking Hibiscus sabdariffa tea along with chloroquine seems to reduce levels of chloroquine.
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When taken together, Hibiscus sabdariffa tea significantly reduces the bioavailability of chloroquine (55004). This may reduce its clinical effects. People taking chloroquine for the treatment or prevention of malaria should avoid Hibiscus sabdariffa tea.
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Theoretically, Hibiscus sabdariffa extract might reduce the metabolism of CYP1A2 substrates.
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In vitro research shows that Hibiscus sabdariffa calyx extract inhibits CYP1A2 (93811). This interaction has not been reported in humans.
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Theoretically, Hibiscus sabdariffa extract might reduce the metabolism of CYP2A6 substrates.
Details
In vitro research shows that Hibiscus sabdariffa calyx extract inhibits CYP2A6 (93811). This interaction has not been reported in humans.
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Theoretically, Hibiscus sabdariffa extract might reduce the metabolism of CYP2B6 substrates.
Details
In vitro research shows that Hibiscus sabdariffa calyx extract inhibits CYP2B6 (93811). This interaction has not been reported in humans.
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Theoretically, Hibiscus sabdariffa extract might reduce the metabolism of CYP2C19 substrates.
Details
In vitro research shows that Hibiscus sabdariffa calyx extract inhibits CYP2C19 (93811). This interaction has not been reported in humans.
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Theoretically, Hibiscus sabdariffa might reduce the metabolism of CYP2C8 substrates.
Details
In vitro research shows that Hibiscus sabdariffa calyx extract inhibits CYP2C8 (93811). This interaction has not been reported in humans.
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Theoretically, Hibiscus sabdariffa extract might reduce the metabolism of CYP2C9 substrates.
Details
In vitro research shows that Hibiscus sabdariffa calyx extract inhibits CYP2C9 (93811). This interaction has not been reported in humans.
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Theoretically, Hibiscus sabdariffa extract might reduce the metabolism of CYP2D6 substrates.
Details
In vitro research shows that Hibiscus sabdariffa calyx extract inhibits CYP2D6 (93811). This interaction has not been reported in humans.
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Theoretically, Hibiscus sabdariffa extract might reduce the metabolism of CYP2E1 substrates.
Details
In vitro research shows that Hibiscus sabdariffa calyx extract inhibits CYP2E1 (93811). This interaction has not been reported in humans.
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Theoretically, Hibiscus sabdariffa extract might reduce the metabolism of CYP3A4 substrates.
Details
In vitro research shows that Hibiscus sabdariffa calyx extract inhibits CYP3A4 (93811). This interaction has not been reported in humans.
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Taking Hibiscus sabdariffa with diclofenac may increase the levels and adverse effects of diclofenac.
Details
Pharmacokinetic research in humans shows that drinking a beverage made with Hibiscus sabdariffa flowers reduces the excretion of diclofenac by approximately 38% when compared with water. The clinical significance of this is unknown (101726).
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Theoretically, Hibiscus sabdariffa might increase the levels and clinical effects of losartan.
Details
Animal research in rats with laboratory-induced hypertension shows that providing Hibiscus sabdariffa for 14-17 days prior to a single administration with losartan modestly increases losartan concentrations and increases hypotensive effects when compared with a single administration of losartan alone (102459). It is not clear if Hibiscus sabdariffa alters the concentration or effects of losartan when taken continuously. Additionally, this interaction has not been shown in humans.
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Taking Hibiscus sabdariffa with simvastatin might reduce the levels and clinical effects of simvastatin.
Details
A pharmacokinetic study in humans shows that taking a beverage prepared with dried Hibiscus sabdariffa flower 300 grams concurrently with a single dose of simvastatin 40 mg increases the clearance of simvastatin by about 45% and reduces peak levels of simvastatin by 18% (96270).
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Theoretically, taking itraconazole capsules or tablets with a beverage containing lemon might increase the levels and clinical effects of itraconazole.
Details
In one case report, dissolving itraconazole tablets in a small amount of specific beverages containing lemon prior to administration increased the level of itraconazole in a lung transplant patient. In this case, the increased bioavailability was desirable and was likely due to improved tablet dissolution in the acidic beverage (110781).
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Theoretically, parsley might increase the risk of bleeding when taken with anticoagulant or antiplatelet drugs.
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Animal research suggests that parsley has antiplatelet effects (68209).
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Theoretically, parsley might increase the risk of hypoglycemia when taken with antidiabetes drugs.
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Theoretically, aspirin might increase the severity of allergic reactions to parsley.
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In one case, severe urticaria and swelling were reported after taking aspirin with parsley in an individual with a known mild parsley allergy (5054).
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Theoretically, parsley might increase serum levels of CYP1A2 substrates.
Details
Laboratory research suggests that parsley can inhibit CYP1A2 (68176).
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Theoretically, parsley might enhance or interfere with the effects of diuretic drugs.
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Theoretically, parsley might increase the duration of pentobarbital effects.
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Animal research suggests that parsley juice prolongs the action of pentobarbital, perhaps by decreasing cytochrome P450 levels (25362). It is not known if this occurs in humans or if this applies to other barbiturates or sedatives.
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Theoretically, large quantities of parsley might increase sirolimus levels.
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In one case report, an adult female with a history of kidney transplant presented with elevated blood sirolimus levels, approximately 4-7 times greater than previous measures, after daily consumption of a juice containing approximately 30 grams of parsley for 7 days. Sirolimus levels returned to normal a week after the parsley juice was discontinued (106010).
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Theoretically, large amounts of parsley leaf and root might decrease the effects of warfarin.
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Parlsey contains vitamin K (19).
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Theoretically, the antioxidant effects of rose hip might reduce the effectiveness of alkylating agents but might also reduce the oxidative damage caused by certain alkylating agents.
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Rose hip contains vitamin C. The use of antioxidants like vitamin C during chemotherapy is controversial. There is concern that antioxidants could reduce the activity of chemotherapy drugs that generate free radicals, such as cyclophosphamide, chlorambucil, carmustine, busulfan, and thiotepa (391). In contrast, some researchers theorize that antioxidants might make chemotherapy more effective by reducing oxidative stress that could interfere with apoptosis (cell death) of cancer cells (14012,14013). Further, some animal research suggests that the antioxidant effects of rose hip might attenuate cyclophosphamide-induced testicular toxicity (111413). More evidence is needed to determine what effect, if any, antioxidants found in rose hip, such as vitamin C, have on the effectiveness and adverse effects of chemotherapy.
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Theoretically, rose hip might increase the amount of aluminum absorbed from aluminum compounds.
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Rose hip contains vitamin C. Theoretically, vitamin C increases the absorption of aluminum. Concomitant use might increase aluminum absorption, but the clinical significance of this is unknown (3046). Administer rose hip two hours before or four hours after antacids.
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Theoretically, rose hip might reduce the effectiveness of anticoagulant or antiplatelet drugs.
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In vitro and animal research suggests that a constituent of rose hip, rugosin E, can induce platelet aggregation (71653). This has not been shown in humans. Theoretically, concomitant use of rose hip might reduce the effectiveness of antiplatelet or anticoagulant drugs.
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Theoretically, the antioxidant effects of rose hip might reduce the effectiveness of antitumor antibiotics.
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Rose hip contains the antioxidant vitamin C. There is concern that antioxidants might reduce the activity of chemotherapy drugs that generate free radicals, such as antitumor antibiotics (391). In contrast, other researchers theorize that antioxidants might make antitumor antibiotic chemotherapy more effective by reducing oxidative stress that could interfere with apoptosis (cell death) of cancer cells (14012,14013). More evidence is needed to determine what effects, if any, antioxidants such as vitamin C have on antitumor antibiotic chemotherapy.
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Theoretically, rose hip might reduce the clearance of aspirin; however, its vitamin C content is likely too low to produce clinically significant effects.
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Rose hip contains vitamin C. It has been suggested that acidification of the urine by vitamin C can decrease the urinary excretion of salicylates, increasing plasma salicylate levels (3046). However, short-term use of up to 6 grams daily of vitamin C does not seem to affect urinary pH or salicylate excretion (10588,10589). The vitamin C content of rose hip is typically about 500 mg per 100 grams. Thus, a clinically significant interaction between rose hip and aspirin is unlikely.
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Theoretically, rose hip might increase blood levels of estrogens.
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Rose hip contains vitamin C. Increases in plasma estrogen levels of up to 55% have occured under some circumstances when vitamin C is taken concurrently with oral contraceptives or hormone replacement therapy, including topical products (129,130,11161). It is suggested that vitamin C prevents oxidation of estrogen in the tissues, regenerates oxidized estrogen, and reduces sulfate conjugation of estrogen in the gut wall (129,11161). When tissue levels of vitamin C are high, these processes are already maximized and supplemental vitamin C does not have any effect on estrogen levels. However, increases in plasma estrogen levels may occur when women who are deficient in vitamin C take supplements (11161).
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Theoretically, rose hip might increase blood levels of lithium.
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Theoretically, rose hip might reduce the effectiveness of warfarin; however, its vitamin C content is likely too low to produce clinically significant effects.
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Rose hip contains vitamin C. High doses of vitamin C may reduce the response to warfarin, possibly by causing diarrhea and reducing warfarin absorption (11566). This occurred in two people who took up to 16 grams daily of vitamin C, and resulted in decreased prothrombin time (9804,9806). Lower doses of 5-10 grams daily of vitamin C can also reduce warfarin absorption, but this does not seem to be clinically significant (9805,9806,11566,11567). The vitamin C content of rose hip is typically about 500 mg per 100 grams. Thus, a clinically significant interaction between rose hip and warfarin is unlikely.
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Consuming sweet orange with celiprolol can decrease oral absorption of celiprolol.
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A pharmacokinetic study in healthy volunteers shows that celiprolol levels, after a single dose of 100 mg, are decreased by up to 90% in people who drink sweet orange juice 200 mL three times daily. It's not known if lower consumption of sweet orange juice will have the same effect. Theoretically, this occurs due to short-term inhibition of organic anion transporting polypeptide (OATP) (12115,17603,17604). Recommend separating drug administration and consumption of sweet orange by at least 4 hours (17603,17604).
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Consuming sweet orange juice with fexofenadine can decrease oral absorption of fexofenadine.
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Clinical research shows that coadministration of sweet orange juice 1200 mL decreases bioavailability of fexofenadine by about 72% (7046,17604). In an animal model, sweet orange juice decreased bioavailability of fexofenadine by 31% (17605). Fexofenadine manufacturer data indicates that concomitant administration of sweet orange juice and fexofenadine results in larger wheal and flare sizes in research models. This suggests that sweet orange reduces the clinical response to fexofenadine (17603). Theoretically, this occurs due to short-term inhibition of organic anion transporting polypeptide (OATP) (7046). Recommend separating drug administration and consumption of sweet orange by at least 4 hours (17603,17604).
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Consuming sweet orange juice with ivermectin can decrease the oral absorption of ivermectin.
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A pharmacokinetic study in healthy volunteers shows that taking ivermectin orally with sweet orange juice 750 mL over 4 hours reduces the bioavailability of ivermectin. This effect does not seem to be related to effects on P-glycoprotein. The effect on ivermectin is more pronounced in males compared to females (12154).
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Consuming sweet orange juice can decrease oral absorption of OATP substrates. Separate administration by at least 4 hours.
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Clinical research shows that consuming sweet orange juice inhibits OATP, which reduces bioavailability of oral drugs that are substrates of OATP (17603,17604). For example, sweet orange juice decreases bioavailability of fexofenadine, a substrate of OATP, by about 72% and of celiprolol, another OATP substrate, by up to 90% (7046,12115). Since sweet orange juice seems to affect OATP for a short time, recommend separating drug administration and consumption of sweet orange juice by at least 4 hours (17603,17604).
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Sweet orange juice seems to modulate P-glycoprotein (P-gp), which might affect the blood levels of P-gp substrates.
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Animal and in vitro research suggest that orange juice extract inhibits drug efflux by P-gp, increasing absorption and levels of P-gp substrates (12116,15327). In contrast, pharmacokinetic research in humans shows that drinking large amounts of sweet orange juice decreases absorption and levels of the P-gp substrate celiprolol. This suggests that orange juice actually induces drug efflux by P-gp or affects drug levels by another mechanism such as inhibiting the gut drug transporter called organic anion transporting polypeptide (OATP) (7046,12115). Until more is known, sweet orange juice should be used cautiously in people taking P-gp substrates.
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Consuming sweet orange juice with pravastatin can increase the absorption of pravastatin.
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A small pharmacokinetic study in healthy volunteers shows that consuming sweet orange juice 800 mL over 3 hours, including before, during, and after taking pravastatin 10 mg, increases pravastatin levels by about 149%, without affecting pravastatin elimination. Theoretically this effect might be due to modulation of organic anion transporting polypeptides (OATPs) by sweet orange juice (14348). Sweet orange juice does not seem to affect simvastatin levels, but it is not known if sweet orange affects any of the other statins.
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Calcium-fortified sweet orange juice might reduce quinolone absorption.
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Below is general information about the adverse effects of the known ingredients contained in the product Dental Health Tea. Some ingredients may not be listed. This information does NOT represent a recommendation for or a test of this specific product as a whole.
General ...Orally, Hibiscus sabdariffa is generally well tolerated.
Gastrointestinal ...Orally, taking a specific Hibiscus sabdariffa leaf extract (Green Chem) 1 gram daily has been associated with reports of transient gastrointestinal symptoms such as abdominal distention, flatulence, and epigastric pain in one clinical trial. However, the overall rate of these adverse effects was similar to placebo (17415). Taking Hibiscus sabdariffa calyx extract 6 grams daily has been associated with single cases of nausea in one clinical trial (55000). Taking Hibiscus sabdariffa calyx powder 6 grams daily has been associated with reports of mild and transient constipation in one clinical trial (93816). Taking 0.5-1 liters of tea daily, made by steeping 10-15 grams of dried Hibiscus sabdariffa calyces, has been associated with one report of stomach pain in one clinical trial (101733).
Genitourinary ...Orally, taking Hibiscus sabdariffa calyx extract 6 grams daily has been associated with one report of dysuria in one clinical trial (55000).
Neurologic/CNS ...Orally, taking Hibiscus sabdariffa calyx extract 3 grams daily has been associated with one report of tremor and headache in one clinical trial (55000).
Ocular/Otic ...Orally, taking Hibiscus sabdariffa calyx extract 3 grams daily has been associated with one report of tinnitus in one clinical trial (55000).
Pulmonary/Respiratory ...Taking 0. 5-1 liters of tea daily, made by steeping 10, 15, or 20 grams of dried Hibiscus sabdariffa calyces, has been associated with two reports of dyspnea in one clinical trial. A clear association with Hibiscus sabdariffa could not be made (101733).
General
...Orally, lemon is well tolerated in amounts commonly found in foods.
A thorough evaluation of safety outcomes has not been conducted on the use of larger amounts.
Most Common Adverse Effects:
Orally: Epigastralgia and heartburn with the regular consumption of fresh lemon juice.
Dermatologic ...Topically, the application of lemon oil might cause photosensitivity, due to furocoumarin derivative content. This occurs most often in fair-skinned people (11019).
Gastrointestinal ...Orally, fresh lemon juice, taken as 60 mL twice daily, has been reported to cause gastrointestinal disturbances in 37% of patients in one clinical trial, compared with 8% of patients in the placebo group. Specifically, of the patients consuming lemon juice, 21% experienced heartburn and 8% experienced epigastralgia, compared to 1% and 3%, respectively, in the placebo group (107489).
General
...Orally, parsley seems to be well tolerated when used low to moderate doses.
Large doses may be unsafe.
Serious Adverse Effects (Rare):
Orally, Hallucinations, hemolytic anemia, hypotension, hepatic impairment, kidney impairment, nephrotic syndrome, paralysis, and thrombocytopenia purpura when taken in very high doses (200 grams parsley oil or 10 grams or more of parsley's apiole or myristicin constituents).
Cardiovascular ...Parsley contains the potentially toxic constituent, myristicin, which can cause significant adverse effects at high doses (11). Adverse effects specifically associated with myristicin include hypotension and bradycardia (4).
Dermatologic
...Orally, parsley oil can cause contact photodermatitis with sun exposure (4).
Topically, parsley can cause contact photodermatitis (4).
Hematologic ...Parsley contains the potentially toxic constituent apiole, which can cause significant adverse effects at high doses (11). Adverse effects specifically associated with more than 10 grams of the constituent apiole include hemolytic anemia and thrombocytopenia purpura (4).
Hepatic ...Parsley contains the potentially toxic constituents, apiole and myristicin, which can cause significant adverse effects at high doses (11). Adverse effects specifically associated with more than 10 grams of the constituent apiole include hepatic dysfunction (4). Adverse effects specifically associated with the constituent myristicin include fatty degeneration of the liver (4).
Immunologic ...A case of anaphylaxis involving severe angioedema leading to unconsciousness has been reported in a woman who consumed parsley 45 minutes prior to symptoms. The patient responded to epinephrine, antihistamines, intravenous fluids, oxygen therapy, and 1 mg/kg methylprednisolone. The woman had consumed one cup of chopped parsley nearly every day for several years, but upon skin testing, the patient tested positive to parsley (92869). There is also a report of lip angioedema after consumption of raw parsley. The patient had anaphylaxis to raw arugula, and reported itchy red lesions after contact with the leaves of either raw parsley or arugula. The patient had positive skin prick tests to both plants. The reaction may have been due to oral allergy syndrome, as the patient could tolerate cooked arugula and parsley, but not raw (92870).
Ocular/Otic ...Parsley contains the potentially toxic constituent, myristicin, which can cause significant adverse effects at high doses (11). An adverse effect specifically associated with the constituent myristicin includes deafness (4).
Psychiatric ...Parsley contains the potentially toxic constituent, myristicin, which can cause significant adverse effects at high doses (11). Adverse effects specifically associated with the constituent myristicin include giddiness and hallucinations (4).
Renal ...Parsley contains the potentially toxic constituents, apiole and myristicin, which can cause significant adverse effects at high doses (11). Adverse effects specifically associated with more than 10 grams of the constituent apiole include nephrosis and kidney irritation (4). Adverse effects specifically associated with the constituent myristicin include fatty degeneration of the kidneys (4).
General
...Orally, rose hip from Rosa canina is well tolerated.
Rose hip from Rosa damascena also seems to be well tolerated. A thorough evaluation of safety outcomes has not been conducted for rose hip derived from other species.
Most Common Adverse Effects:
Orally: Flatulence, loose stools.
Dermatologic ...Orally, one case of mild urticaria has been reported in a clinical trial for a patient taking a specific rose hip powder product (LitoZin/i-flex, Hyben Vital) 2. 5 grams twice daily (71646).
Gastrointestinal
...Orally, gastrointestinal reactions have been reported.
These include abdominal cramps, acid reflux, constipation, diarrhea, flatulence, nausea, vomiting, gastrointestinal obstruction, esophagitis, heartburn, acid reflux, and water brash. However, in most cases, these adverse effects occurred at the same frequency in patients taking placebo (15,18104,71641,71646,97938).
Rose hip powder is a source of vitamin C. Osmotic diarrhea and gastrointestinal upset have been reported with doses of vitamin C greater than the tolerable upper intake level (UL) of 2000 mg daily (4844). However, most rose hip products contain only 500 mg of vitamin C per 100 grams.
Genitourinary ...Orally, a few mild cases of frequent voiding have been reported in clinical trials. However, the frequency of occurrence does not seem to differ from those taking placebo (71641,71646).
Immunologic ...When inhaled in the workplace, rose hip dust has caused mild to moderate anaphylaxis (6).
Neurologic/CNS ...Orally, vertigo and headache have been reported rarely (97938).
Ocular/Otic ...A case of keratoconjunctivitis secondary to contact with rose hip has been reported. The adverse effect was attributed to irritant hairs found on the fruit of rose hip. Symptoms resolved after treatment with topical prednisolone 1% eye drops (71642).
General ...Orally, sweet orange juice or fruit seem to be well tolerated. Large amounts of sweet orange peel may be unsafe, especially for children. When inhaled, sweet orange essential oil seems to be generally well tolerated.
Gastrointestinal ...There have been reports of intestinal colic in children following ingestion of large amounts of sweet orange peel (11).
Neurologic/CNS ...There have been reports of convulsions in children following ingestion of large amounts of sweet orange peel (11).
