Lipitor, also known as Atorvastatin, is a medication used to lower cholesterol levels in the blood. Blood thinners, also known as anticoagulants, are used to prevent blood clots. The sources provided do not indicate any major risks associated with taking Lipitor with blood thinners.

However, it is important to note that some drugs can interact with Lipitor and affect its effectiveness or cause side effects. Therefore, it is important to inform your doctor of all medications you are taking, including blood thinners, before starting Lipitor.

According to Drug Patent Watch [1], there are no known drug interactions between Lipitor and blood thinners. However, Healthline [2] notes that certain blood thinners, such as warfarin, can interact with other medications and cause bleeding or clotting problems. It is important to monitor your blood regularly and report any unusual symptoms to your doctor.

SingleCare [3] explains that Lipitor is not a blood thinner, but rather a statin medication that works by blocking an enzyme in the liver that produces cholesterol. It is important to continue taking blood thinners as prescribed by your doctor, even if you are also taking Lipitor.

In conclusion, while there are no major risks associated with taking Lipitor with blood thinners, it is important to inform your doctor of all medications you are taking and to monitor your blood regularly. It is also important to continue taking blood thinners as prescribed by your doctor, even if you are also taking Lipitor.

Sources:
[1] https://www.drugpatentwatch.com/p/tradename/LIPITOR
[2] https://www.healthline.com/health/drugs/lipitor
[3] https://www.singlecare.com/blog/is-atorvastatin-a-blood-thinner/