Lipitor, also known as atorvastatin, is a medication used to lower cholesterol levels in the blood. It works by blocking the enzyme responsible for producing cholesterol in the liver [2]. According to Drug Patent Watch [1], Lipitor is one of the most prescribed medications in the United States and has been on the market since 1996.

Like any medication, Lipitor may cause side effects. The Mayo Clinic [2] lists some of the common side effects of Lipitor, which include headache, muscle aches, diarrhea, and nausea. However, most people who take Lipitor do not experience any side effects or only experience mild side effects.

In rare cases, Lipitor may cause more serious side effects such as liver damage, muscle damage, and an increased risk of developing type 2 diabetes [2]. It is important to talk to your doctor if you experience any symptoms that may indicate liver or muscle damage, such as dark urine, yellowing of the skin or eyes, unexplained muscle pain, or weakness.

WebMD [3] provides some important information on how to take Lipitor. It is usually taken once a day, with or without food, and at the same time every day. It is important to take Lipitor exactly as prescribed by your doctor. Lipitor may interact with other medications, so it is important to inform your doctor of all the medications you are taking.

In conclusion, Lipitor is a medication used to lower cholesterol levels in the blood. It is generally well-tolerated, but may cause side effects in some people. It is important to talk to your doctor if you experience any symptoms that may indicate liver or muscle damage. It is also important to take Lipitor exactly as prescribed by your doctor and inform them of all the medications you are taking [1][2][3].

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.webmd.com/drugs/2/drug-3330/lipitor-oral/details