Lipitor is a drug used to lower cholesterol levels in the blood, and it is classified as a statin drug [1]. Statins work by blocking an enzyme in the liver that is responsible for producing cholesterol, thereby reducing the amount of cholesterol in the bloodstream [3].

One of the potential side effects of statins, including Lipitor, is muscle pain or weakness [2]. This side effect is rare, but it can be serious and may lead to a condition called rhabdomyolysis, which is the breakdown of muscle tissue that can cause kidney damage [3].

A study published in the Journal of Clinical Lipidology found that muscle symptoms, including fatigue, were reported in 5.4% of patients taking statins, including Lipitor [2]. However, the study also found that the incidence of muscle symptoms was similar in patients taking a placebo, indicating that muscle symptoms may not be directly related to statin use [2].

It is important to note that muscle symptoms associated with statin use are generally mild and go away on their own once the medication is stopped [3]. However, if you experience severe muscle pain or weakness while taking Lipitor or any other statin drug, you should contact your doctor immediately [3].

In conclusion, Lipitor, like other statin drugs, may cause muscle symptoms such as fatigue, but the incidence of these symptoms is relatively low. If you experience muscle pain or weakness while taking Lipitor, you should talk to your doctor about the best course of action.

Sources:
[1] https://www.drugpatentwatch.com/p/tradename/LIPITOR
[2] https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2949584/
[3] https://www.mayoclinic.org/diseases-conditions/high-blood-cholesterol/in-depth/statin-side-effects/art-20046013