Lipitor is a brand name for atorvastatin, a medication used to lower cholesterol levels in the blood. While it is generally well-tolerated, there are some reported side effects that users should be aware of.

The most common side effects of Lipitor are mild and include headache, nausea, diarrhea, and muscle pain [1]. These side effects are usually temporary and go away as the body adjusts to the medication.

However, there are also some more serious side effects that have been reported with Lipitor use. These include liver damage, muscle damage (myopathy), and an increased risk of developing type 2 diabetes [2]. In rare cases, Lipitor use has also been associated with a potentially life-threatening condition called rhabdomyolysis, which is characterized by muscle breakdown and can lead to kidney damage [3].

It is important to note that the risk of experiencing these side effects is relatively low, and Lipitor is generally considered safe for most people. However, individuals who have a history of liver or kidney problems, muscle pain or weakness, or who are taking certain other medications may be at a higher risk for experiencing side effects [2].

If you experience any unusual symptoms while taking Lipitor, such as severe muscle pain, weakness, or tenderness, or yellowing of the skin or eyes, you should contact your healthcare provider immediately. In some cases, it may be necessary to adjust your medication or switch to a different cholesterol-lowering medication.

Sources:
[1] https://www.drugpatentwatch.com/p/tradename/LIPITOR
[2] https://www.drugwatch.com/lipitor/side-effects/
[3] https://www.nhs.uk/medicines/atorvastatin/side-effects-of-atorvastatin/