Lipitor is a brand name for atorvastatin, a type of medication used to lower cholesterol levels in the blood. According to Drug Patent Watch [1], Lipitor is one of the most prescribed drugs in the United States. However, patients who take Lipitor should avoid consuming grapefruit or grapefruit juice, as it can increase the risk of side effects [2][3].

Grapefruit contains compounds that interfere with the enzymes responsible for breaking down Lipitor in the body. This can cause Lipitor to accumulate in the bloodstream, increasing the risk of side effects such as muscle pain, liver damage, and kidney failure. These side effects can be severe and even life-threatening in some cases [2][3].

It is recommended that patients taking Lipitor avoid consuming grapefruit or grapefruit juice altogether. If a patient cannot avoid grapefruit, they should speak with their doctor about adjusting their Lipitor dosage or switching to a different medication [2][3].

In conclusion, patients taking Lipitor should avoid consuming grapefruit or grapefruit juice to prevent potentially dangerous side effects. It is important to speak with a doctor if a patient cannot avoid grapefruit altogether.

Sources:
[1] https://www.drugpatentwatch.com/p/tradename/LIPITOR
[2] https://www.goodrx.com/classes/statins/why-cant-i-have-grapefruit-with-my-statin
[3] https://ro.co/health-guide/lipitor-and-grapefruit/