Lipitor is a brand name for the drug atorvastatin, which is used to lower cholesterol levels in the body. Grapefruit juice is known to interact with many drugs, including Lipitor, and can cause serious side effects. According to GoodRx [2], grapefruit juice can increase the levels of Lipitor in the bloodstream, which can lead to an increased risk of side effects. The increased levels of Lipitor can cause muscle pain, weakness, and damage, which can be severe in some cases. Additionally, grapefruit juice can interfere with the breakdown of Lipitor in the liver, which can further increase the risk of side effects.

Drug Patent Watch [1] confirms that Lipitor and grapefruit juice should not be taken together. According to the website, the combination can increase the risk of muscle pain and damage, as well as liver damage. The website also notes that the interaction between Lipitor and grapefruit juice can be unpredictable and can vary depending on the individual.

Ro Health Guide [3] also warns against combining Lipitor and grapefruit juice. According to the website, grapefruit juice can increase the levels of Lipitor in the bloodstream, which can lead to an increased risk of side effects. The website recommends avoiding grapefruit juice while taking Lipitor to reduce the risk of side effects.

In conclusion, combining Lipitor and grapefruit juice can lead to serious side effects, including muscle pain and damage, liver damage, and an increased risk of other side effects. It is recommended to avoid grapefruit juice while taking Lipitor to reduce the risk of these side effects.

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/