Lipitor is a brand name for the drug atorvastatin, which is a type of medication used to lower cholesterol levels in the blood. According to the sources provided, there are several potential side effects associated with taking Lipitor.

Common side effects of Lipitor include muscle and joint pain, diarrhea, nausea, and constipation. Some people may also experience headache, dizziness, or a rash. These side effects are generally mild and go away on their own over time.

However, there are also some more serious side effects that can occur with Lipitor. One of the most concerning is muscle damage, which can cause weakness, pain, and even kidney failure in severe cases. Patients taking Lipitor should be aware of any unexplained muscle pain or weakness and report it to their doctor immediately.

Another potential side effect of Lipitor is liver damage, although this is rare. Patients should be aware of any symptoms of liver problems, such as yellowing of the skin or eyes, dark urine, or abdominal pain, and report them to their doctor right away.

In rare cases, Lipitor can also cause allergic reactions, which can be life-threatening. Symptoms of an allergic reaction may include hives, difficulty breathing, or swelling of the face, lips, tongue, or throat. Patients who experience these symptoms should seek emergency medical attention.

Overall, Lipitor is generally considered safe and effective for most people. However, patients should be aware of the potential side effects and report any symptoms to their doctor right away. It is also important to follow the dosage instructions carefully and to let your doctor know about any other medications or supplements you are taking, as these can interact with Lipitor and increase the risk of side effects.

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.nhs.uk/medicines/atorvastatin/side-effects-of-atorvastatin/