Lipitor is a brand name for the drug atorvastatin, which is a type of medication used to lower cholesterol levels in the blood. According to Drug Patent Watch [1], Lipitor is a statin drug that works by blocking an enzyme in the liver that is responsible for producing cholesterol. However, there is no indication from this source that Lipitor can increase the risk of blood clots.

The American Heart Association [2] explains that blood clots can form when there is damage to the blood vessels or when the blood flow is slowed down. The article notes that high levels of cholesterol can contribute to the formation of blood clots, which can lead to serious health problems such as heart attacks and strokes. The article also states that statins like atorvastatin can help reduce the risk of blood clots by lowering cholesterol levels in the blood.

SingleCare [3] explains that atorvastatin is not a blood thinner, but rather a medication that works to lower cholesterol levels in the blood. Blood thinners are a different type of medication that work by preventing blood clots from forming. The article notes that while atorvastatin does not directly prevent blood clots, it can indirectly reduce the risk of blood clots by lowering cholesterol levels in the blood.

In conclusion, based on the sources provided, there is no evidence to suggest that Lipitor (atorvastatin) can increase the risk of blood clots. In fact, statins like atorvastatin are commonly used to help reduce the risk of blood clots by lowering cholesterol levels in the blood. However, it is important to speak with a healthcare provider to determine if atorvastatin is the right medication for an individual's specific health needs.

Sources:
[1] https://www.drugpatentwatch.com/p/tradename/LIPITOR
[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/