Eating a grapefruit or having a glass of grapefruit juice in the morning can be a healthy way to start your day – the fruit is high in vitamin C and potassium. But the FDA is reminding consumers that grapefruit can interact with many drugs and how they work in the body, especially if you have high blood pressure or an irregular heartbeat.
When grapefruit interacts with certain medications, the problem is that the juice causes too much of the drug to enter the bloodstream. That can lead to more side effects. For example, drinking grapefruit juice while taking statins such as Zocor (simvastatin) and Lipitor (atorvastatin), drugs used to lower cholesterol, can lead to too much of the drug remaining in your system, increasing your risk for liver and muscle damage that can lead to kidney failure.
Grapefruit juice actually causes less Allegra to enter the bloodstream, which may hamper the effectiveness of the drug.
If you eat grapefruit or drink grapefruit juice and have concerns about it interacting with any of the drugs you are taking, talk it over with your doctor. You can also read the medication guide or patient information sheet that comes with your prescription drugs to see if there is a grapefruit juice warning.