The Grapefruit Challenge: Which drugs interact with grapefruit juice?

Grapefruit juice and grapefruit can affect the way medications work, and this food-drug interaction can be a concern. The FDA requires that some prescription and OTC drugs generally taken by mouth include warnings against drinking grapefruit juice or eating grapefruit while taking the drug. Do you know which common drugs may be impacted by this interaction? Take the quiz now.