Lipitor, also known as atorvastatin, is a medication used to lower cholesterol levels in the blood. According to [2], high levels of low-density lipoprotein (LDL) cholesterol can increase the risk of heart disease and stroke. Lipitor works by inhibiting an enzyme called HMG-CoA reductase, which is responsible for producing cholesterol in the liver. By reducing the amount of cholesterol in the blood, Lipitor can help prevent the formation of plaques in the arteries, which can lead to blood clots.

However, Lipitor does not directly affect blood clotting. It is not classified as a blood thinner or anticoagulant medication. As [3] explains, blood thinners work by preventing blood clots from forming or by breaking up existing clots. Lipitor does not have this effect on blood clotting.

It is important to note that while Lipitor does not directly affect blood clotting, it can still have an impact on bleeding risk. According to [2], high doses of Lipitor can increase the risk of bleeding in the brain. This risk is more significant in patients who have a history of stroke or have other risk factors for bleeding.

In summary, Lipitor does not directly affect blood clotting. It works by reducing cholesterol levels in the blood, which can help prevent the formation of plaques in the arteries. While Lipitor can increase the risk of bleeding in the brain, it is not classified as a blood thinner or anticoagulant medication. Patients should always consult with their healthcare provider before starting any new medication to discuss potential risks and benefits.

Sources:
[2] https://www.ahajournals.org/doi/full/10.1161/01.atv.0000151647.14923.ec
[3] https://www.singlecare.com/blog/is-atorvastatin-a-blood-thinner/