Lipitor is a brand name for the medication atorvastatin, which is a type of statin used to lower cholesterol levels in the body [1]. According to Healthline [2], consuming grapefruit or grapefruit juice while taking Lipitor can increase the risk of side effects. This is because grapefruit contains a compound that can interfere with the metabolism of certain medications, including statins like Lipitor. When this happens, the medication may stay in the body for longer than intended, leading to an increased risk of side effects.

Similarly, Drugs.com [3] states that consuming limes or lime juice while taking statins like Lipitor can also increase the risk of side effects. This is because limes contain compounds that can inhibit the same enzyme responsible for metabolizing statins in the body. As a result, the medication may accumulate in the body and increase the risk of side effects.

Therefore, it is recommended to avoid consuming grapefruit, limes, or lime juice while taking Lipitor or any other statin medication [2][3]. Patients should also talk to their healthcare provider about any other medications or supplements they are taking, as well as any dietary restrictions or preferences, to ensure safe and effective use of Lipitor or any other medication [2].

Sources:
[1] https://www.drugpatentwatch.com/p/tradename/LIPITOR
[2] https://www.healthline.com/health/high-cholesterol/grapefruit-and-statins
[3] https://www.drugs.com/medical-answers/you-limes-lime-juice-taking-statin-drugs-3211550/