Lipitor is a medication used to lower cholesterol levels in the body. It belongs to a class of drugs called statins [1]. Grapefruit is a fruit that is known to interact with some medications, including statins [2]. Consuming grapefruit while taking Lipitor can increase the risk of side effects associated with the medication [3]. Therefore, it is not recommended to consume Lipitor and grapefruit together. Patients taking Lipitor should avoid consuming grapefruit or grapefruit juice during their treatment period [2][3].

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/