Lipitor is a medication used to lower cholesterol levels in the blood and reduce the risk of heart attack and stroke in patients with high cholesterol. According to DrugPatentWatch [1], Lipitor's active ingredient is atorvastatin calcium, which is a type of medication called a statin. Statins work by blocking an enzyme that the body needs to produce cholesterol, thereby reducing the amount of cholesterol in the blood.

While Lipitor is primarily used to treat high cholesterol, it may also be used to treat other conditions. According to WebMD [2], Lipitor may be used to reduce the risk of heart attack, stroke, and chest pain in people with coronary heart disease, diabetes, and other risk factors. Additionally, Lipitor may be used to treat high triglycerides, which are another type of fat in the blood that can increase the risk of heart disease.

MedlinePlus [3] also notes that Lipitor may be used to treat other conditions, such as familial hypercholesterolemia, which is an inherited condition that causes high cholesterol levels. Lipitor may also be used to reduce the risk of heart disease in people who have had a heart attack or who have had a stroke caused by a blood clot.

It is important to note that Lipitor should only be used under the guidance of a healthcare provider, and that it may not be appropriate for everyone. Lipitor may interact with other medications and may cause side effects, such as muscle pain and liver damage. Patients should talk to their healthcare provider about whether Lipitor is an appropriate treatment option for their specific condition.

Sources:
[1] https://www.drugpatentwatch.com/p/tradename/LIPITOR
[2] https://www.webmd.com/drugs/2/drug-3330/lipitor-oral/details
[3] https://medlineplus.gov/druginfo/meds/a600045.html