Lipitor, also known as atorvastatin, is a medication used to lower cholesterol levels and reduce the risk of heart disease and stroke. While it is generally considered safe and effective, there are some potential side effects to be aware of.

According to the National Health Service (NHS) [2], the most common side effects of Lipitor include headache, muscle aches and pains, digestive issues such as constipation or diarrhea, and feeling sick or dizzy. These side effects are usually mild and go away on their own within a few days or weeks.

However, there are also some more serious side effects to be aware of. The NHS [2] notes that in rare cases, Lipitor can cause muscle damage, which can lead to kidney problems. Symptoms of muscle damage can include muscle pain, tenderness, or weakness, particularly if accompanied by a fever or feeling unwell. If you experience these symptoms, you should seek medical attention immediately.

Another potential side effect of Lipitor is liver damage, although this is also rare. Signs of liver damage can include yellowing of the skin or eyes, dark urine, and abdominal pain. Again, if you experience these symptoms, you should seek medical attention right away.

Drugwatch [3] also notes that Lipitor can increase the risk of developing type 2 diabetes, although the risk is small. Other potential side effects listed by Drugwatch include memory loss, confusion, and an increased risk of bleeding.

Overall, while Lipitor can have some potential side effects, they are generally mild and go away on their own. However, there are some more serious side effects to be aware of, particularly muscle damage and liver damage. If you experience any symptoms of these side effects, you should seek medical attention immediately.

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