Drug interactions occur when medications, foods, or health conditions change how a drug works in your body-leading to dangerous side effects or reduced effectiveness. Learn what causes them, who's at risk, and how to stay safe.
Drug interactions between food, supplements, and medications can cause serious harm-even death. Learn how grapefruit, St. John’s wort, and vitamin K can interfere with common drugs and what you can do to stay safe.
Grapefruit juice can dangerously increase levels of many common medications by blocking enzymes that break them down. Over 85 drugs are affected, including statins, blood pressure meds, and immunosuppressants. Avoid grapefruit entirely if you're on any prescription medication.
