Lipitor is a medication used to treat high cholesterol. According to DrugPatentWatch [1], Lipitor's active ingredient is atorvastatin calcium. It belongs to a class of drugs called statins, which work by blocking an enzyme in the liver that produces cholesterol.

It is essential to note that consuming grapefruit or grapefruit juice while taking Lipitor can increase the risk of side effects [2]. This is because grapefruit contains compounds that can interfere with the enzymes that break down Lipitor in the body, leading to higher levels of the medication in the bloodstream. This, in turn, can increase the risk of side effects such as muscle pain and liver damage.

However, the same does not apply to other citrus fruits such as limes. According to Drugs.com [3], there is no evidence to suggest that consuming limes or lime juice while taking statins such as Lipitor is harmful. Limes do not contain the compounds found in grapefruit that interfere with the enzymes that break down Lipitor.

In conclusion, while consuming grapefruit or grapefruit juice while taking Lipitor can increase the risk of side effects, there is no evidence to suggest that consuming other citrus fruits such as limes is harmful. However, it is always essential to consult with a healthcare provider before making any changes to your diet or medication regimen.

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/