Fast Five Quiz: Vitamin C

Romesh Khardori, MD, PhD


June 24, 2021

Vitamin C may interact with certain medications, including aluminum, chemotherapy drugs, estrogen, protease inhibitors, statins, niacin, and warfarin. Vitamin C supplements can decrease the level or effect of omadacycline by inhibition of GI absorption. This applies only to the oral form of both agents. Multivalent cation-containing products may impair absorption of tetracyclines, which may decrease its efficacy.

Read more about dosing information and interactions associated with OTC vitamin C.

This Fast Five Quiz was excerpted and adapted from the Medscape Drugs & Diseases articles Scurvy, Ascorbic Acid, and Vitamin Toxicity.

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