Lipitor is a medication used to lower cholesterol levels and reduce the risk of heart attack and stroke. According to Drug Patent Watch [1], the patent for Lipitor expired in 2011, and it is now available as a generic medication. The time it takes to reverse the effects of Lipitor varies depending on the individual and the duration of use.

One of the common side effects of Lipitor is muscle pain [2]. If a patient experiences muscle pain while taking Lipitor, they should consult their doctor. The doctor may suggest a lower dose or a different medication to reduce the muscle pain. In some cases, stopping the medication may be necessary to alleviate the symptoms.

A study published in CNN [3] suggests that the benefits of statins, including Lipitor, outweigh the risks of side effects. The study found that statins significantly reduce the risk of heart attack and stroke, and the risk of side effects is relatively low. However, patients who experience side effects while taking statins should consult their doctor to determine the best course of action.

In conclusion, the time it takes to reverse the effects of Lipitor depends on the individual and the duration of use. If a patient experiences muscle pain while taking Lipitor, they should consult their doctor. The doctor may suggest a lower dose or a different medication to reduce the muscle pain. In some cases, stopping the medication may be necessary to alleviate the symptoms. However, it is important to note that the benefits of statins, including Lipitor, outweigh the risks of side effects according to a study published in CNN [3].

Sources:
[1] https://www.drugpatentwatch.com/p/tradename/LIPITOR
[2] https://www.goodrx.com/classes/statins/muscle-pain-statins-how-to-prevent-common-side-effect
[3] https://www.cnn.com/2017/07/24/health/statins-side-effects-outcomes-study/index.html