Lipitor is a prescription medication that is primarily prescribed to lower cholesterol levels in the blood. It is used to treat high levels of low-density lipoprotein (LDL) cholesterol, also known as "bad" cholesterol, in people with primary hyperlipidemia or mixed dyslipidemia [2]. It can also be used to reduce the risk of heart attack, stroke, and other cardiovascular diseases in people who have a history of these conditions or who have multiple risk factors for them [3]. Lipitor is a statin drug that works by inhibiting the enzyme HMG-CoA reductase, which is responsible for producing cholesterol in the liver [2]. It is typically taken once daily, with or without food, and the dosage may vary depending on the individual's medical history and cholesterol levels [2]. However, it is important to note that Lipitor may cause side effects such as muscle pain, weakness, and liver problems, and should only be taken under the supervision of a healthcare professional [3].

Sources:
[2] https://www.webmd.com/drugs/2/drug-3330/lipitor-oral/details
[3] https://www.lipitor.com/