Lipitor (atorvastatin) is a prescription medication that belongs to the class of drugs called statins. It is used to treat high cholesterol levels and reduce the risk of heart attack, stroke, and other cardiovascular diseases [1]. However, like any other medication, Lipitor may cause side effects.

According to the National Health Service (NHS) [2], the most common side effects of Lipitor are headaches, nosebleeds, sore throat, nausea, constipation, diarrhea, and joint pain. In rare cases, Lipitor may cause more severe side effects such as liver problems, muscle damage, and an increased risk of developing diabetes. The NHS recommends seeking medical advice immediately if you experience any of the following symptoms while taking Lipitor: muscle pain, tenderness, weakness, or cramps, yellowing of the skin or eyes, dark urine, or pale stools.

Drugwatch [3] reports that some studies have linked Lipitor to an increased risk of developing memory loss, confusion, and type 2 diabetes. Additionally, the FDA has issued warnings about the potential risk of developing muscle damage (myopathy) or a more severe form of muscle damage called rhabdomyolysis while taking Lipitor. Symptoms of muscle damage may include muscle pain, tenderness, or weakness.

In conclusion, Lipitor is a widely used medication to treat high cholesterol levels, but like any other medication, it may cause side effects. The most common side effects of Lipitor are usually mild and temporary, but in rare cases, it may cause severe side effects such as liver problems, muscle damage, and an increased risk of developing diabetes. If you experience any unusual symptoms while taking Lipitor, it is important to seek medical advice immediately.

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