Three capsules contain: Proprietary Blend 1500 mg: Eucommia bark (eucommia ulmoides), Eucommia ulmoides Cis-Tan-Che stem (cistanche salsa), Cistanche Achyranthes root (achyranthes bidentata), Achyranthes Bidentata Dipsacus root (dipsacus asper), Dipsacus Asper Drynaria rhizome (drynaria fortunei), Drynaria Fortunei Poria cocos (hoelen sclerotium), Morinda root (morinda officinalis), Rehmannia root tuber (rehmannia glutinosa), Rehmannia glutinosa Astragalus root (astragalus membranaceus), Cornus fruit (cornus officinalis), Cornus officinalis Dong Quai root (angelica sinensis), Dioscorea rhizome (dioscorea batatas), Epimedium leaf (epimedium macranthum), ligustrum fruit (ligustrum licidium), Liquidamber fruit (liquidamber taiwaniana), Lycium fruit (lycium chinense), Panax ginseng root, Atractylodes rhizome (atractylodes macrocephala). Other Ingredients: Gelatin, Water.
Brand name products often contain multiple ingredients. To read detailed information about each ingredient, click on the link for the individual ingredient shown above.
Below is general information about the effectiveness of the known ingredients contained in the product KB-C. Some ingredients may not be listed. This information does NOT represent a recommendation for or a test of this specific product as a whole.
There is insufficient reliable information available about the effectiveness of American dogwood.
INSUFFICIENT RELIABLE EVIDENCE to RATE
INSUFFICIENT RELIABLE EVIDENCE to RATE
INSUFFICIENT RELIABLE EVIDENCE to RATE
There is insufficient reliable information available about the effectiveness of glossy privet.
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
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 KB-C. Some ingredients may not be listed. This information does NOT represent a recommendation for or a test of this specific product as a whole.
There is insufficient reliable information available about the safety of American dogwood.
PREGNANCY AND LACTATION:
Insufficient reliable information available; avoid using.
POSSIBLY SAFE ...when used orally and appropriately. Doses of astragalus up to 60 grams daily for up to 4 months have been used without reported adverse effects (32920,33038,95909). ...when used intravenously. Infusion of doses up to 80 grams daily for up to 4 months under the supervision of a medical professional have been used with apparent safety (32811,32812,32828,95909). There is insufficient reliable information available about the safety of astragalus when used topically.
PREGNANCY AND LACTATION:
There is insufficient reliable information in humans.
However, astragaloside, a constituent of astragalus, has maternal and fetal toxic effects in animals (32881). Avoid using.
There is insufficient reliable information available about the safety of atractylodes.
PREGNANCY: POSSIBLY UNSAFE
when used orally.
In animals, atractylodes has caused reproductive toxicity, including fetal death, as well as changes in gestation, growth, and skeletal formation (94304).
LACTATION:
There is insufficient reliable information available about the safety of atractylodes when used during breast-feeding.
POSSIBLY SAFE ...when used orally and appropriately. Dong quai has been used with apparent safety in a dose of 4.5 grams daily for 24 weeks, or in combination with other ingredients in doses of up to 150 mg daily for up to 6 months (19552,35797). ...when used intravenously as a 25% solution, in a dose of 200-250 mL daily for up to 20 days (48438,48442,48443,48483).
POSSIBLY UNSAFE ...when used orally in large amounts, long-term. Theoretically, long-term use of large amounts of dong quai could be harmful. Dong quai contains several constituents such as bergapten, safrole, and isosafrole that are considered carcinogenic (7162). There is insufficient reliable information available about the safety of dong quai when used topically.
PREGNANCY: POSSIBLY UNSAFE
when used orally.
Dong quai has uterine stimulant and relaxant effects (8142); theoretically, it could adversely affect pregnancy. Observational research has found that intake of An-Tai-Yin, an herbal combination product containing dong quai and parsley, during the first trimester is associated with an increased risk of congenital malformations of the musculoskeletal system, connective tissue, and eyes (15129).
LACTATION:
Insufficient reliable information available; avoid use.
POSSIBLY SAFE ...when used orally and appropriately (12).
PREGNANCY AND LACTATION:
Insufficient reliable information available; avoid using.
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.
POSSIBLY SAFE ...when horny goat weed extract is used orally and appropriately, short-term. A specific extract of horny goat weed containing 60 mg icariin, 15 mg daidzein, and 3 mg genistein (Xianling Gubao; Tong Ji Tang Pharmacal Company) has been used daily with apparent safety for up to 24 months (14900,97268). Another aqueous extract of horny goat weed containing up to 25.36% icariin has been used in a dose of 300 mL daily with apparent safety for up to 6 months (55452). Another horny goat weed extract has been used with apparent safety at doses up to 1000 mg daily (providing 200 mg icariin) for up to 30 days (108311).
POSSIBLY UNSAFE ...when used orally long-term or in high doses. Long-term use, or taking high doses of some species of horny goat weed, has been linked to serious adverse effects including respiratory arrest (10346).
PREGNANCY: POSSIBLY UNSAFE
when used orally.
Horny goat weed might have androgenic activity (10346). Theoretically, it might harm a developing fetus; avoid using.
LACTATION:
Insufficient reliable information available; avoid using.
POSSIBLY SAFE ...when used orally and appropriately. Noni juice has been used in doses of up to 200 mL daily with apparent safely in small clinical studies for up to 3 months (11944,17169,65173). However, there have been several case reports of increased liver enzymes and hepatotoxicity in people taking some noni products (13107,14341,14468,17170,17171,17172). In three reports, hepatotoxicity was linked to a specific brand of noni juice (Tahitian Noni Juice, Tahitian Noni International) (14341,17171). It is unclear if potential contaminants or hypersensitivity reactions may be the cause of these events. More evidence is needed to determine if noni increases the risk for hepatotoxicity. There is insufficient reliable information available about the safety of noni fruit extract when used orally or the safety of noni when used topically.
PREGNANCY AND LACTATION:
While animal research is conflicting on the teratogenic effects of noni (65205,65206), there is insufficient reliable information available about the safety of noni in humans; avoid using.
LIKELY SAFE ...when used orally and appropriately, short-term. Panax ginseng seems to be safe when used for up to 6 months (8813,8814,17736,89741,89743,89745,89746,89747,89748,103044,103477).
POSSIBLY UNSAFE ...when used orally, long-term. There is some concern about the long-term safety due to potential hormone-like effects, which might cause adverse effects with prolonged use (12537). Tell patients to limit continuous use to less than 6 months. There is insufficient reliable information available about the safety of Panax ginseng when used topically.
CHILDREN: LIKELY UNSAFE
when used orally in infants.
Use of Panax ginseng in newborns is associated with intoxication that can lead to death (12). There is limited reliable information available about use in older children (24109,103049); avoid using.
PREGNANCY: POSSIBLY UNSAFE
when used orally.
Ginsenoside Rb1, an active constituent of Panax ginseng, has teratogenic effects in animal models (10447,24106,24107); avoid using.
LACTATION:
Insufficient reliable information available; avoid using.
There is insufficient reliable information available about the safety of poria mushroom.
PREGNANCY AND LACTATION:
Insufficient reliable information available; avoid using.
POSSIBLY SAFE ...when used orally and appropriately, short term. Rehmannia root extract 4 grams daily or rehmannia leaf extract 800 mg daily has been used with apparent safety for 8 weeks in clinical studies (93660,93662).
PREGNANCY AND LACTATION:
Insufficient reliable information available; avoid using.
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.
Below is general information about the interactions of the known ingredients contained in the product KB-C. 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 astragalus with antidiabetes drugs might increase the risk of hypoglycemia.
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Theoretically, astragalus might interfere with cyclophosphamide therapy.
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Theoretically, astragalus might interfere with immunosuppressive therapy.
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Theoretically, astragalus might increase levels and adverse effects of lithium.
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Animal research suggests that astragalus has diuretic properties (15103). Theoretically, due to this diuretic effect, astragalus might reduce excretion and increase levels of lithium.
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Theoretically, atractylodes might increase the risk of bleeding when used concomitantly with anticoagulant and antiplatelet drugs.
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Laboratory research suggests that atractylenolides II and III, constituents of atractylodes, reduce platelet activation (94299). So far, this has not been shown in humans.
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Theoretically, atractylodes may have an additive effect when used with other aromatase inhibitors.
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Laboratory research suggests that atractylodes and its constituents exhibit aromatase inhibitor effects (94302).
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Theoretically, taking atractylodes may prolong the therapeutic and adverse effects of hexobarbital.
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In animals, atractylodes has been shown to prolong the effects of hexobarbital (94303). These effects have not been shown in humans.
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Theoretically, dong quai may increase the risk of bleeding when used with anticoagulant or antiplatelet drugs; however, research is conflicting.
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Animal studies suggest that dong quai has antithrombin activity and inhibits platelet aggregation due to its coumarin components (6048,10057,96137). Additionally, some case reports in humans suggest that dong quai can increase the anticoagulant effects of warfarin (3526,6048,23310,48439). However, clinical research in healthy adults shows that taking 1 gram of dong quai root daily for 3 weeks does not significantly inhibit platelet aggregation or cause bleeding (96137). Until more is known, use dong quai with caution in patients taking antiplatelet/anticoagulant drugs.
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Theoretically, dong quai may reduce the effects of estrogens.
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Dong quai may increase the risk of bleeding when used with warfarin.
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Case reports suggest that concomitant use of dong quai with warfarin can increase the anticoagulant effects of warfarin and increase the risk of bleeding (3526,6048,23310,48439). In one case, after 4 weeks of taking dong quai 565 mg once or twice daily, the international normalized ratio (INR) increased to 4.9. The INR normalized 4 weeks after discontinuation of dong quai (3526).
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Glossy privet is thought to have diuretic properties. Theoretically, due to these potential diuretic effects, glossy privet might reduce excretion and increase levels of lithium. The dose of lithium might need to be decreased.
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Theoretically, concomitant use of goji fruit polysaccharides or goji root bark with antidiabetes drugs might have additive effects.
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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).
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Theoretically, concomitant use of goji root bark, but not goji fruit, with antihypertensive drugs might have additive effects.
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Theoretically, goji berry might inhibit CYP2C19 and reduce metabolism of CYP2C19 substrates.
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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.
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Theoretically, goji berry might inhibit CYP2C9 and reduce metabolism of CYP2C9 substrates.
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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.
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Theoretically, goji berry might inhibit CYP2D6 and reduce metabolism of CYP2D6 substrates.
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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.
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Theoretically, goji berry might inhibit CYP3A4 and reduce metabolism of CYP3A4 substrates.
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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.
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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).
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Goji can increase the effects of warfarin and possibly increase the risk of bleeding.
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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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Theoretically, horny goat weed might increase the risk of bleeding.
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In vitro research and animal research shows that horny goat weed can inhibit platelet aggregation and thrombus formation (105832). This effect has not been reported in humans.
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Theoretically, horny goat weed might increase the risk of hypotension.
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Laboratory research suggests that horny goat weed might have hypotensive effects (10346). This effect has not been reported in humans.
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Theoretically, horny goat weed might increase the effects and side effects of CYP1A2 substrates.
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In vitro, horny goat weed leaf extract inhibits CYP1A2 (97267). This effect has not been reported in humans.
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Theoretically, horny goat weed might increase the effects and side effects of CYP2B6 substrates.
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In vitro, horny goat weed leaf extract inhibits CYP2B6 (97267). This effect has not been reported in humans.
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Theoretically, horny goat weed might increase the effects and side effects of CYP3A4 substrates.
Details
In vitro, horny goat weed extract inhibits CYP3A4 and suppresses CYP3A4 mRNA expression (112708). This effect has not been reported in humans.
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Theoretically, concomitant use of horny goat weed with estrogens might increase their therapeutic and adverse effects.
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Theoretically, combining noni and ACE inhibitors might increase the risk of hyperkalemia.
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Noni juice contains significant amounts of potassium, about 6 mEq/100 mL juice (1298). This may increase the risk for hyperkalemia when used in conjunction with ACE inhibitors, which can also increase potassium levels.
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Theoretically, combining noni and ARBs might increase the risk of hyperkalemia.
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Noni juice contains significant amounts of potassium, about 6 mEq/100 mL juice (1298). This may increase the risk for hyperkalemia when used in conjunction with ARBs, which can also increase potassium levels.
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Theoretically, noni may increase the risk of hypotension when used in combination with antihypertensive drugs.
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Preliminary clinical research suggests that drinking noni juice can reduce blood pressure in individuals with hypertension (65231).
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Theoretically, taking noni with hepatotoxic drugs might increase the risk of liver damage.
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Theoretically, taking noni fruit juice concomitantly with phenytoin may lower phenytoin levels and increase the risk of seizures.
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In one case report, an adult taking phenytoin for partial seizures experienced low serum phenytoin levels while taking noni juice 90-200 mL daily. Serum phenytoin levels increased after decreasing noni juice consumption; similarly, serum phenytoin levels decreased after increasing noni juice consumption. Some researchers believe noni juice may induce cytochrome P450 2C9 enzymes, which would decrease phenytoin levels, but this has not been well studied. Patients may need additional monitoring when starting or stopping noni juice supplementation (106057).
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Theoretically, combing noni and a potassium-sparing diuretic might increase the risk of hyperkalemia.
Details
Noni juice contains significant amounts of potassium, about 6 mEq/100 mL juice (1298). This may increase the risk for hyperkalemia when used in conjunction with potassium-sparing diuretics, which can also increase potassium levels.
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Taking noni fruit with ranitidine might increase the levels and clinical effects of ranitidine.
Details
Clinical evidence shows that taking an aqueous extract of noni fruit 30 minutes prior to taking a single oral dose of ranitidine can increase the rate of absorption and plasma concentration of ranitidine (23387).
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Theoretically, taking noni juice concomitantly with warfarin might decrease the effectiveness of warfarin.
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In one case, a 41-year-old patient stabilized on warfarin had a decreased international normalized ratio (INR) following consumption of a specific commercial noni juice product (Noni juice 4 Everything). While the patient was still taking noni juice, an increase in warfarin dose did not produce an increase in INR (14434). However, it should be noted that this particular product contained extracts and derivatives from more than 115 components, many of which contained vitamin K. Furthermore, vitamin K was listed as a separate ingredient of the product, suggesting that the product was possibly fortified with vitamin K. It has not been verified that noni fruit alone contains a significant amount of vitamin K or interacts with warfarin.
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Although Panax ginseng has shown antiplatelet effects in the laboratory, it is unlikely to increase the risk of bleeding if used with anticoagulant or antiplatelet drugs.
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In vitro evidence suggests that ginsenoside constituents in Panax ginseng might decrease platelet aggregation (1522,11891). However, research in humans suggests that ginseng does not affect platelet aggregation (11890). Animal research indicates low oral bioavailability of Rb1 and rapid elimination of Rg1, which might explain the discrepancy between in vitro and human research (11153). Until more is known, use with caution in patients concurrently taking anticoagulant or antiplatelet drugs.
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Theoretically, taking Panax ginseng with antidiabetes drugs might increase the risk of hypoglycemia.
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Clinical research suggests that Panax ginseng might decrease blood glucose levels (89740). Monitor blood glucose levels closely.
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Theoretically, taking Panax ginseng with caffeine might increase the risk of adverse stimulant effects.
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Theoretically, Panax ginseng might decrease levels of drugs metabolized by CYP1A1.
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In vitro research shows that Panax ginseng can induce the CYP1A1 enzyme (24104).
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Theoretically, Panax ginseng might increase levels of drugs metabolized by CYP2D6. However, research is conflicting.
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There is some evidence that Panax ginseng can inhibit the CYP2D6 enzyme by approximately 6% (1303,51331). In addition, in animal research, Panax ginseng inhibits the metabolism of dextromethorphan, a drug metabolized by CYP2D6, by a small amount (103478). However, contradictory research suggests Panax ginseng might not inhibit CYP2D6 (10847). Until more is known, use Panax ginseng cautiously in patients taking drugs metabolized by these enzymes.
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Theoretically, Panax ginseng might increase or decrease levels of drugs metabolized by CYP3A4.
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Panax ginseng may affect the clearance of drugs metabolized by CYP3A4. One such drug is imatinib. Inhibition of CYP3A4 was believed to be responsible for a case of imatinib-induced hepatotoxicity (89764). In contrast, Panax ginseng has been shown to increase the clearance of midazolam, another drug metabolized by CYP3A4 (89734,103478). Clinical research shows that Panax ginseng can reduce midazolam area under the curve by 44%, maximum plasma concentration by 26%, and time to reach maximum plasma concentration by 29% (89734). Midazolam metabolism was also increased in animals given Panax ginseng (103478). Until more is known, use Panax ginseng cautiously in combination with CYP3A4 substrates.
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Theoretically, concomitant use of large amounts of Panax ginseng might interfere with hormone replacement therapy.
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Theoretically, Panax ginseng might decrease blood levels of oral or intravenous fexofenadine.
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Animal research suggests that taking Panax ginseng in combination with oral or intravenous fexofenadine may reduce the bioavailability of fexofenadine. Some scientists have attributed this effect to the ability of Panax ginseng to increase the expression of P-glycoprotein (24101).
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Theoretically, Panax ginseng might reduce the effects of furosemide.
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There is some concern that Panax ginseng might contribute to furosemide resistance. There is one case of resistance to furosemide diuresis in a patient taking a germanium-containing ginseng product (770).
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Theoretically, Panax ginseng might increase the effects and adverse effects of imatinib.
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A case of imatinib-induced hepatotoxicity has been reported for a 26-year-old male with chronic myelogenous leukemia stabilized on imatinib for 7 years. The patient took imatinib 400 mg along with a Panax ginseng-containing energy drink daily for 3 months. Since imatinib-associated hepatotoxicity typically occurs within 2 years of initiating therapy, it is believed that Panax ginseng affected imatinib toxicity though inhibition of cytochrome P450 3A4. CYP3A4 is the primary enzyme involved in imatinib metabolism (89764).
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Theoretically, Panax ginseng use might interfere with immunosuppressive therapy.
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Panax ginseng might have immune system stimulating properties (3122).
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Theoretically, taking Panax ginseng with insulin might increase the risk of hypoglycemia.
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Clinical research suggests that Panax ginseng might decrease blood glucose levels (89740). Insulin dose adjustments might be necessary in patients taking Panax ginseng; use with caution.
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Although Panax ginseng has demonstrated variable effects on cytochrome P450 3A4 (CYP3A4), which metabolizes lopinavir, Panax ginseng is unlikely to alter levels of lopinavir/ritonavir.
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Lopinavir is metabolized by CYP3A4 and is administered with the CYP3A4 inhibitor ritonavir to increase its plasma concentrations. Panax ginseng has shown variable effects on CYP3A4 activity in humans (89734,89764). However, taking Panax ginseng (Vitamer Laboratories) 500 mg twice daily for 14 days did not alter the pharmacokinetics of lopinavir/ritonavir in 12 healthy volunteers (93578).
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Theoretically, Panax ginseng may increase the clearance of midazolam.
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Midazolam is metabolized by cytochrome P450 3A4 (CYP3A4). Clinical research suggests that Panax ginseng can reduce midazolam area under the curve by 44%, maximum plasma concentration by 26%, and time to reach maximum plasma concentration by 29% (89734). Midazolam metabolism was also increased in animals given Panax ginseng (103478).
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Theoretically, Panax ginseng can interfere with MAOI therapy.
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Theoretically, taking Panax ginseng with nifedipine might increase serum levels of nifedipine and the risk of hypotension.
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Preliminary clinical research shows that concomitant use can increase serum levels of nifedipine in healthy volunteers (22423). This might cause the blood pressure lowering effects of nifedipine to be increased when taken concomitantly with Panax ginseng.
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Theoretically, Panax ginseng has an additive effect with drugs that prolong the QT interval and potentially increase the risk of ventricular arrhythmias. However, research is conflicting.
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Theoretically, taking Panax ginseng with raltegravir might increase the risk of liver toxicity.
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A case report suggests that concomitant use of Panax ginseng with raltegravir can increase serum levels of raltegravir, resulting in elevated liver enzymes levels (23621).
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Theoretically, Panax ginseng might increase or decrease levels of selegiline, possibly altering the effects and side effects of selegiline.
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Animal research shows that taking selegiline with a low dose of Panax ginseng extract (1 gram/kg) reduces selegiline bioavailability, while taking a high dose of Panax ginseng extract (3 grams/kg) increases selegiline bioavailability (103053). More research is needed to confirm these effects.
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Theoretically, taking Panax ginseng with stimulant drugs might increase the risk of adverse stimulant effects.
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Panax ginseng might affect the clearance of warfarin. However, this interaction appears to be unlikely.
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There has been a single case report of decreased effectiveness of warfarin in a patient who also took Panax ginseng (619). However, it is questionable whether Panax ginseng was the cause of this decrease in warfarin effectiveness. Some research in humans and animals suggests that Panax ginseng does not affect the pharmacokinetics of warfarin (2531,11890,17204,24105). However, other research in humans suggests that Panax ginseng might modestly increase the clearance of the S-warfarin isomer (15176). More evidence is needed to determine whether Panax ginseng causes a significant interaction with warfarin.
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Theoretically, poria mushroom might decrease the clinical effects of anticholinergic drugs.
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In animal research, poria mushroom essential oil reduces acetylcholinesterase activity (111917). This interaction has not been shown in humans.
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Theoretically, poria mushroom might have additive effects when used with cholinergic drugs.
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In animal research, poria mushroom essential oil reduces acetylcholinesterase activity (111917). This interaction has not been shown in humans.
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Theoretically, taking poria mushroom extract may enhance the therapeutic and adverse effects of sedatives.
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Animal research shows that poria mushroom extract has sedative properties (111916). This interaction has not been shown in humans.
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Theoretically, rehmannia might increase the risk of hypoglycemia when taken with antidiabetes drugs.
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Theoretically, rehmannia might increase the risk of hypotension when taken with antihypertensive drugs.
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Animal research shows that rehmannia may have hypotensive effects. Laboratory research shows that formulations of dried and processed rehmannia root inhibit angiotensin-converting enzyme (ACE) (104272).
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Theoretically, wild yam might increase or decrease the effects of estrogen.
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Below is general information about the adverse effects of the known ingredients contained in the product KB-C. 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 and topically, no adverse effects of American dogwood have been reported. However, a thorough evaluation of safety outcomes has not been conducted.
General
...Orally and intravenously, astragalus root seems to be well tolerated.
Topically, no adverse effects have been reported. However, a thorough evaluation of safety outcomes has not been conducted.
Serious Adverse Effects (Rare):
Orally: A case report raises concerns about liver and kidney cysts with astragalus use.
Cardiovascular ...Orally, astragalus has reportedly been associated with lacunar angina in one clinical trial. However, this may not have been caused by astragalus (17355). In addition, rapid intravenous administration of astragalus has resulted in temporary palpitations (32812).
Dermatologic ...Intravenously, astragalus may cause rash, eczema, and pruritus (33034).
Gastrointestinal ...Orally, astragalus has reportedly been associated with enterocolitis and nausea in one clinical trial. However, these effects may not have been caused by astragalus (17355).
Genitourinary ...Orally, astragalus has reportedly been associated with vulvitis in one clinical trial. However, this effect may not have been caused by astragalus (17355).
Hepatic ...A case of high serum CA19-9 levels and small liver and kidney cysts has been reported for a 38-year-old woman who drank astragalus tea daily for one month. Levels returned to normal after one month, and cysts disappeared after ten months. Both symptoms returned following a resumption of astragalus use. The authors state that astragalus was the likely cause given the temporal relationship (90658).
Neurologic/CNS ...Rapid intravenous administration of astragalus has resulted in temporary dizziness (32812).
Pulmonary/Respiratory ...Orally, astragalus has reportedly been associated with rhinosinusitis and pharyngitis in one clinical trial. However, these effects may not have been caused by astragalus (17355).
Renal ...A case of high serum CA19-9 levels and small liver and kidney cysts has been reported for a 38-year-old woman who drank astragalus tea daily for one month. Levels returned to normal after one month, and cysts disappeared after ten months. Both symptoms returned following a resumption of astragalus use. The authors state that astragalus was the likely cause given the temporal relationship (90658).
General
...There is currently a limited amount of information on the adverse effects of atractylodes.
A thorough evaluation of safety outcomes has not been conducted.
Most Common Adverse Effects:
Orally: Allergic reaction, dry mouth, nausea.
Gastrointestinal ...Orally, atractylenolide I, an isolated constituent of atractylodes, can cause bad taste, nausea, and dry mouth (15706).
Immunologic ...Atractylodes can cause an allergic reaction in people sensitive to the Asteraceae/Compositae family (12450). Members of this family include ragweed, chrysanthemums, marigolds, daisies, and many other herbs.
General
...Orally, dong quai is generally well-tolerated.
Most Common Adverse Effects:
Orally: Burping and flatulence.
Intravenously: Headache.
Cardiovascular ...Orally, dong quai might cause hypertension; according to one case report, a parent and breastfed infant experienced hypertension (195/85 mmHg and 115/69 mmHg, respectively) after the parent consumed a soup containing dong quai root (48428).
Dermatologic ...Dong quai contains psoralens that may cause photosensitivity and photodermatitis (10054,10057,48461).
Endocrine ...In a case report, a male developed gynecomastia after ingesting dong quai tablets (48504).
Gastrointestinal ...Orally, burping and gas may occur with dong quai (738).
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 three days after taking a phytoestrogen preparation containing dong quai 100 mg, black cohosh 250 mg, wild Mexican yam 276 mg, and red clover 250 mg (13155). It is unclear if dong quai contributed to this event.
Neurologic/CNS ...Dong quai given orally or by injection may be associated with headache (738,48438).
Oncologic ...Dong quai contains constituents that are carcinogenic; however, whether these constituents are present in concentrations large enough to cause cancer with long-term or high-dose use is unknown (7162).
Pulmonary/Respiratory ...A pharmacist experienced allergic asthma and rhinitis after occupational exposure to dong quai and other herbs (48435).
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).
General
...Orally, horny goat weed seems to be well tolerated when used short-term.
Most Common Adverse Effects:
Orally: Dizziness, dry mouth, nosebleed, thirst, and vomiting.
Serious Adverse Effects (Rare):
Orally: Respiratory arrest.
Cardiovascular ...A 66-year-old male with a history of cardiovascular disease developed tachyarrhythmia after taking horny goat weed for 2 weeks (13006). It is not clear if this product contained only horny goat weed or a combination of ingredients; therefore, assigning causality is not possible.
Gastrointestinal ...Orally, long-term use of horny goat weed has been associated with reports of vomiting, dry mouth, thirst, and nosebleed (10346).
Hepatic ...A case of hepatotoxicity characterized by abdominal pain, nausea, vomiting, and fever has been reported in a 40-year-old male patient with hepatitis C, after a month of taking one tablet daily of a combination product containing horny goat weed and multiple other ingredients (Enzyte, Vianda). Symptoms improved following cessation of the product, but it is not clear if they were due to horny goat weed, another ingredients, or hepatitis C (91590). An observational study over 24 years found 26 cases of drug-induced hepatoxicity associated with horny goat weed (112707).
Musculoskeletal ...Orally, large doses of horny goat weed may cause exaggeration of tendon reflexes to the point of spasm (10346).
Neurologic/CNS ...Orally, long-term use of horny goat weed has been associated with reports of dizziness (10346).
Psychiatric ...There is a case report of hypomania in a 66-year-old male who took horny goat weed for 2 weeks (13006). It is not clear if this product contained only horny goat weed or a combination of ingredients; therefore, assigning causality is not possible.
Pulmonary/Respiratory ...Orally, large doses of horny goat weed may cause respiratory arrest (10346).
General
...Orally and topically, noni seems to be generally well tolerated; however, high quality studies of adverse effects have not been conducted.
Most Common Adverse Effects:
Orally: Abdominal discomfort, nausea.
Serious Adverse Effects (Rare)::
Orally: Hepatotoxicity, including liver failure. However, studies have not conclusively identified whether noni, or contaminants in noni products, were responsible for this toxicity.
Gastrointestinal ...Orally, dehydrated noni fruit has been reported to cause nausea and abdominal discomfort (65173).
Hepatic
...Noni has been associated with several cases of hepatotoxicity in previously healthy patients ranging in age from 14 to 62 years (13107,14341,14468,17170,17171,17172).
In two cases, the patients had used a tea or other herbal products containing noni (13107,17172); five had consumed noni juice, specifically Tahitian Noni Juice (Tahitian Noni International) (14341,16648,17171); and two cases involved energy drinks containing several herbal ingredients including noni (17170,90125). Symptoms of liver dysfunction and elevated liver function tests (LFTs) were seen between 2 weeks and 4 months after starting noni. The LFTs started to improve within 2 days of stopping noni and generally normalized within 1 month (13107,14468,17171). Biopsy findings included acute hepatitis, inflammation, hepatocyte necrosis, and hepatocellular cholestasis (14341,17170). One patient, who had a history of prior mild acetaminophen toxicity, had rapidly progressive liver failure after noni ingestion and required transplantation (14341).
Potential product contamination was not ruled out in these case reports. Some researchers theorize that anthraquinones contained in noni could potentially cause hepatotoxicity. Other products containing anthraquinones, such as senna, have been linked to cases of hepatotoxicity. However, analyses of a noni juice product associated with reports of liver damage (Tahitian Noni Juice, Tahitian Noni International) have not detected anthraquinone content (14444). Another analysis of noni fruit puree from which the seeds and skin had been removed had no detectable anthraquinones (92201). However, products containing seed or leaf material had detectable amounts of anthraquinones (92201). The part of the noni plant used might affect hepatotoxicity risk. More evidence is needed to determine if noni causes hepatotoxicity.
General
...Orally, Panax ginseng is generally well tolerated when used for up to 6 months.
There is some concern about the long-term safety due to potential hormone-like effects.
Topically, no adverse effects have been reported when ginseng is used as a single ingredient. However, a thorough evaluation of safety outcomes has not been conducted.
Most Common Adverse Effects:
Orally: Insomnia.
Serious Adverse Effects (Rare):
Orally: Anaphylaxis, arrhythmia, ischemia, Stevens-Johnson syndrome.
Cardiovascular ...Panax ginseng may cause hypertension, hypotension, and edema when used orally in high doses, long-term (3353). However, single doses of Panax ginseng up to 800 mg are not associated with changes in electrocardiogram (ECG) parameters or increases in heart rate or blood pressure (96218). There is a case report of menometrorrhagia and tachyarrhythmia in a 39-year-old female who took Panax ginseng 1000-1500 mg/day orally and also applied a facial cream topically that contained Panax ginseng. Upon evaluation for menometrorrhagia, the patient also reported a history of palpitations. It was discovered that she had sinus tachycardia on ECG. However, the patient was a habitual consumer of coffee 4-6 cups/day and at the time of evaluation was also mildly anemic. The patient was advised to discontinue taking Panax ginseng. During the 6 month period following discontinuation the patient did not have any more episodes of menometrorrhagia or tachyarrhythmia (13030). Also, a case of transient ischemic attack secondary to a hypertensive crisis has been reportedly related to oral use of Panax ginseng (89402).
Dermatologic
...Orally, Panax ginseng may cause itching or an allergic response consisting of systemic rash and pruritus (89743,89760,104953).
Skin eruptions have also been reported with use of Panax ginseng at high dosage, long-term (3353). Uncommon side effects with oral Panax ginseng include Stevens-Johnson syndrome (596).
In one case report, a 6-year-old male with a previous diagnosis of generalized pustular psoriasis, which had been in remission for 18 months, presented with recurrent pustular lesions after consuming an unspecified dose of Panax ginseng. The patient was diagnosed with pityriasis amiantacea caused by subcorneal pustular dermatosis. Treatment with oral dapsone 25 mg daily was initiated, and symptoms resolved after 4 weeks (107748).
Topically, when a specific multi-ingredient cream preparation (SS Cream) has been applied to the glans penis, mild pain, local irritation, and burning have occurred (2537).
Endocrine
...The estrogenic effects of ginseng are controversial.
Some clinical evidence suggests it doesn't have estrogen-mediated effects (10981). However, case reports of ginseng side effects such as postmenopausal vaginal bleeding suggest estrogenic activity (590,591,592,10982,10983).
In a 12-year-old Korean-Japanese male, enlargement of both breasts with tenderness in the right breast (gynecomastia) occurred after taking red ginseng extract 500 mg daily orally for one month. Following cessation of the product, there was no further growth or pain (89733). Swollen and tender breasts also occurred in a 70-year-old female using Panax ginseng orally (590).
Gastrointestinal ...Orally, Panax ginseng can cause decreased appetite (3353), diarrhea (3353,89734,103477), abdominal pain (89734,87984), and nausea (589,87984). However, these effects are typically associated with long-term, high-dose usage (3353).
Genitourinary
...Amenorrhea has been reported with oral use of Panax ginseng (3353).
Topically, when a specific multi-ingredient cream preparation (SS Cream) has been applied to the glans penis, sporadic erectile dysfunction and excessively delayed ejaculation have occurred (2537). Less commonly, patients can experience vaginal bleeding (591,592,3354,23630).
Hepatic ...Uncommon side effects can include cholestatic hepatitis (associated with a Panax ginseng-containing, multi-ingredient product, Prostata), such as that which occurred in a 65-year old male following oral use (598).
Immunologic ...A case of anaphylaxis, with symptoms of hypotension and rash, has been reported following ingestion of a small amount of Panax ginseng syrup (11971).
Neurologic/CNS ...Orally, one of the most common side effects to Panax ginseng is insomnia (589,89734). Headache (594,23638), vertigo, euphoria, and mania (594) have also been reported. Migraine and somnolence occurred in single subjects in a clinical trial (87984). In a case report of a 46-year-old female, orobuccolingual dyskinesia occurred following oral use of a preparation containing black cohosh 20 mg and Panax ginseng 50 mg twice daily for menopausal symptoms. The patient's condition improved once the product was stopped and treatment with baclofen 40 mg and clonazepam 20 mg daily was started (89735).
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).
General ...Orally, rehmannia seems to be well tolerated.
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).
