Visit the UPMC Heart and Vascular Institute or call 1-855-UPMC-HVI to learn more. If you’re worried about getting enough vitamin C and potassium in your diet, a registered dietitian – an expert on diet and nutrition - can help you find other foods that are both healthy and safe based on the medicines you take. If grapefruit is a regular part of your diet, you might need to lower the amount that you eat, or avoid it altogether, depending on what medicines you take. Antihistamines, a type of allergy medicineīefore you start any new medicine, talk with your doctor or pharmacist about the other medicines you take and the foods you usually eat.Anti-rejection medicines used after organ transplants.Anti-arrhythmia drugs, which treat heart rhythm problems.Calcium channel blockers, a major class of medicines used to treat high blood pressure.This breakfast table staple is one of the beverages that’s a big drug-interaction. Medicines that interact with grapefruit and grapefruit juice include some, but not all, types of: Here are six common drinks people living with rheumatoid arthritis should know more about. In some cases, grapefruit can also make certain kinds of drugs less effective or cause new side effects. This could lead to excessively high amounts of the drug in your body, which can cause serious health problems. Grapefruit is rich in healthy nutrients, including vitamin C and potassium, but it can also block your body’s ability to clear some types of prescription drugs from your system. Often-prescribed medicines that can interact with grapefruit include medicines that: Fight infection.

Grapefruit and medications