Lipitor is a medication used to lower cholesterol levels in the body. According to Drug Patent Watch [1], the active ingredient in Lipitor is atorvastatin calcium. While muscle soreness is a known side effect of statin medications like Lipitor, it is not necessarily a common one. According to the Mayo Clinic [2], muscle soreness or weakness occurs in about 5-10% of people taking statins, including Lipitor. This side effect can range from mild discomfort to severe muscle damage, which is rare but potentially life-threatening.

If you are experiencing muscle soreness while taking Lipitor, it is important to talk to your doctor. They may recommend adjusting your dosage or trying a different medication. Additionally, Harvard Health Publishing [3] suggests that lifestyle changes such as regular exercise, a healthy diet, and maintaining a healthy weight can help manage muscle pain associated with statin use.

In conclusion, while muscle soreness is a known side effect of Lipitor and other statin medications, it is not necessarily a common one. If you are experiencing muscle soreness while taking Lipitor, it is important to talk to your doctor about your options for managing this side effect.

Sources:
[1] https://www.drugpatentwatch.com/p/tradename/LIPITOR
[2] https://www.mayoclinic.org/diseases-conditions/high-blood-cholesterol/in-depth/statin-side-effects/art-20046013
[3] https://www.health.harvard.edu/pain/managing-statin-muscle-pain