Lipitor is a medication used to lower cholesterol levels in the blood. According to the sources provided, it is not recommended to take Lipitor with grapefruit juice. Grapefruit juice contains a chemical that can interfere with the metabolism of certain medications, including Lipitor. This can lead to higher levels of the medication in the bloodstream, increasing the risk of side effects.

The website Drug Patent Watch [1] indicates that Lipitor's patent expired in 2011, and it is now available as a generic medication. The website does not provide information on the use of Lipitor with grapefruit juice.

The website Verywell Health [2] explains that grapefruit juice can increase the levels of Lipitor in the bloodstream, leading to a higher risk of side effects such as muscle pain, liver damage, and kidney failure. The article recommends avoiding grapefruit juice while taking Lipitor.

The website Health Harvard [3] also advises against taking Lipitor with grapefruit juice. The article explains that grapefruit juice can inhibit the enzyme that breaks down Lipitor, leading to higher levels of the medication in the bloodstream. The article also notes that the interaction between grapefruit juice and Lipitor can last for up to 24 hours after drinking the juice.

In conclusion, based on the sources provided, it is not recommended to take Lipitor with grapefruit juice. Grapefruit juice can interfere with the metabolism of Lipitor, leading to higher levels of the medication in the bloodstream and an increased risk of side effects.

Sources:
[1] https://www.drugpatentwatch.com/p/tradename/LIPITOR
[2] https://www.verywellhealth.com/can-i-take-lipitor-or-zocor-with-grapefruit-juice-1124045
[3] https://www.health.harvard.edu/heart-health/grapefruit-juice-and-statins