Lipitor, also known as Atorvastatin, is a medication used to treat high cholesterol levels in the blood. While it is an effective drug, it may cause side effects in some patients. According to the National Health Service (NHS) [2], common side effects of Lipitor include headache, digestive issues, muscle pain, and an increased risk of developing diabetes. However, these side effects are usually mild and go away on their own after a few days or weeks.

On the other hand, Drugwatch [3] mentions that some patients may experience serious side effects, including liver damage, kidney problems, and muscle breakdown. These side effects are rare but can be severe and require immediate medical attention. Patients who experience any of these symptoms should stop taking Lipitor and seek medical help immediately.

According to Drug Patent Watch [1], the side effects of Lipitor are not different from other statins. Statins are a group of drugs used to lower cholesterol levels in the blood. They work by blocking an enzyme that the liver uses to produce cholesterol. The side effects of statins are generally mild and go away on their own. However, in rare cases, they can cause serious side effects, as mentioned earlier.

In conclusion, Lipitor is an effective medication for treating high cholesterol levels. While it may cause side effects in some patients, these side effects are usually mild and go away on their own. However, some patients may experience serious side effects, which require immediate medical attention. Patients should always consult their doctor before taking Lipitor and report any side effects they experience [2][3].

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/