Lipitor is a brand name for the drug atorvastatin, which is a type of statin medication used to lower cholesterol levels in the blood. According to the sources provided, grapefruit and grapefruit juice should be avoided while taking Lipitor or any other statin medication due to potential interactions that can increase the risk of side effects.

Grapefruit contains compounds called furanocoumarins, which can interfere with the metabolism of certain medications, including statins. When statins are taken with grapefruit or grapefruit juice, the furanocoumarins can inhibit an enzyme in the liver that is responsible for breaking down the medication. This can cause the statin to build up in the body to potentially dangerous levels, increasing the risk of side effects such as muscle pain, liver damage, and kidney problems.

The sources suggest that it is best to avoid consuming grapefruit or grapefruit juice while taking Lipitor or any other statin medication. If you are already taking a statin and have been consuming grapefruit or grapefruit juice, it is important to talk to your doctor about any potential risks and whether you should adjust your medication or avoid grapefruit products altogether.

In summary, Lipitor and other statin medications should not be taken with grapefruit or grapefruit juice due to potential interactions that can increase the risk of side effects. It is best to avoid consuming grapefruit products while taking these medications. If you have any concerns or questions, it is important to speak with your doctor.

Sources:
[1] https://www.drugpatentwatch.com/p/tradename/LIPITOR
[2] https://www.health.harvard.edu/heart-health/grapefruit-juice-and-statins
[3] https://www.goodrx.com/classes/statins/why-cant-i-have-grapefruit-with-my-statin