Lipitor, also known as atorvastatin, is a medication used to lower cholesterol levels in the body. According to Drug Patent Watch [1], the drug has been on the market since 1996 and is a commonly prescribed medication. However, like all medications, it may cause side effects.

The Mayo Clinic [2] lists several possible side effects of statins, including Lipitor. These side effects include muscle pain and damage, liver damage, digestive problems, rash or flushing, increased blood sugar levels, and neurological side effects such as memory loss or confusion. The article notes that most people who take statins do not experience serious side effects. However, it is important to speak with a doctor if any of these side effects occur.

Medical News Today [3] also notes that Lipitor may cause muscle pain or weakness, particularly in people who are physically active or have kidney problems. The article also mentions that Lipitor may increase the risk of developing type 2 diabetes, although this risk is small.

In conclusion, Lipitor may cause several side effects, including muscle pain and damage, liver damage, digestive problems, rash or flushing, increased blood sugar levels, and neurological side effects such as memory loss or confusion. However, most people who take Lipitor do not experience serious side effects. If any of these side effects occur, it is important to speak with a doctor. Additionally, Lipitor may increase the risk of developing type 2 diabetes, although this risk is small.

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.medicalnewstoday.com/articles/drugs-lipitor-side-effects