Lipitor is a medication that belongs to a class of drugs known as statins, which are used to lower cholesterol levels in the blood [1]. It is primarily used to treat high levels of low-density lipoprotein (LDL) cholesterol, also known as "bad" cholesterol, which can lead to atherosclerosis, a condition in which plaque builds up in the arteries and can increase the risk of heart disease and stroke [2].

Lipitor is also used to treat other liver conditions such as non-alcoholic fatty liver disease (NAFLD) and non-alcoholic steatohepatitis (NASH), which are both associated with high levels of cholesterol and triglycerides in the blood [2]. However, it is important to note that while Lipitor can help improve liver function in these conditions, it is not a cure and should be used in conjunction with lifestyle changes such as a healthy diet and regular exercise [3].

Like all medications, Lipitor can have side effects, including muscle pain and weakness, liver damage, and an increased risk of developing type 2 diabetes [2]. However, these side effects are rare and generally outweighed by the benefits of the medication in reducing the risk of heart disease and stroke [3].

In summary, Lipitor is primarily used to treat high levels of LDL cholesterol, which can lead to atherosclerosis, heart disease, and stroke. It can also be used to treat liver conditions such as NAFLD and NASH, but should be used in conjunction with lifestyle changes. While Lipitor can have side effects, they are generally rare and outweighed by the benefits of the medication in reducing the risk of heart disease and stroke.

Sources:
[1] https://www.drugpatentwatch.com/p/tradename/LIPITOR
[2] https://www.medicalnewstoday.com/articles/drugs-lipitor-side-effects
[3] https://www.mayoclinic.org/diseases-conditions/high-blood-cholesterol/in-depth/statin-side-effects/art-20046013