People who are taking
statins that may interact with grapefruit should not consume large amounts of grapefruit juice, grapefruit, or grapefruit supplements, as this can increase the levels of medication in the blood. This, in turn, increases the chances of developing a serious muscle problem (myopathy or rhabdomyolysis), which can cause kidney failure and other life-threatening complications, including, in rare cases, loss of life
(see Statins and Muscle Pain). If you want to be completely safe, it is best to avoid such products altogether.
If you are being treated with statins and grapefruit juice is your preferred drink, talk to your doctor about other
cholesterol medications you can take. You may also want to try one of the statin
cholesterol medications that do not appear to interact with grapefruit juice. If you take statins, do not drastically increase or decrease your grapefruit consumption without first checking with your healthcare provider.