Repaglinide is used to treat individuals with type 2 (non-insulin-dependent) diabetes mellitus ; it is in the meglitinide class of anti-diabetic drugs. It may be used as an adjunct to diet and exercise either alone or in combination with other anti-diabetic medications.
Common brand names:Prandin
Summary of Interactions with Vitamins, Herbs, & Foods
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Potential Negative Interaction
In a preliminary trial, administration of Ginkgo biloba extract (120 mg per day) for three months to patients with type 2 diabetes who were taking oral anti-diabetes medication resulted in a significant worsening of glucose tolerance. Ginkgo did not impair glucose tolerance in individuals whose diabetes was controlled by diet.1 Individuals taking oral anti-diabetes medication should consult a doctor before taking Ginkgo biloba.
Willow bark contains salicin, which is related to aspirin . Both salicin and aspirin produce anti-inflammatory effects after they have been converted to salicylic acid in the body. Taking aspirin together with repaglinide enhances the blood-sugar-lowering effects of the drug,2 which might result in unwanted side effects. Controlled research is needed to determine whether taking willow bark together with repaglinide might produce similar effects.The interaction is supported by preliminary, weak, fragmentary, and/or contradictory scientific evidence.
Supplementation with large amounts of niacin (also called nicotinic acid) can increase blood glucose levels in diabetics , which might interfere with the blood-sugar-lowering effects of repaglinide.3 The form of vitamin B3 known as niacinamide does not have this effect. People who start or stop supplementing niacin while on repaglinide should carefully monitor their blood sugar levels and consult their prescribing doctor about making adjustments in the daily amount of drug taken.
1. Kudolo GB. The effect of 3-month ingestion of Ginkgo biloba extract (EGb 761) on pancreatic beta-cell function in response to glucose loading in individuals with non-insulin-dependent diabetes mellitus. J Clin Pharmacol 2001;41:600?11.
2. Sifton DW, ed. Physicians Desk Reference. Montvale, NJ: Medical Economics Company, Inc., 2000, 2071?3.
3. Sifton DW, ed. Physicians Desk Reference. Montvale, NJ: Medical Economics Company, Inc., 2000, 2071?3.
Last Review: 05-01-2013
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