Lipitor is a brand name for atorvastatin, which is a medication used to lower cholesterol levels in the blood [2]. It works by inhibiting an enzyme in the liver that produces cholesterol [2]. Blood thinners, on the other hand, are medications that prevent blood clots from forming [3].

According to the sources provided, there is no evidence to suggest that Lipitor interacts with all blood thinners. However, it is important to note that some blood thinners may interact with Lipitor, and caution should be exercised when taking both medications simultaneously [1,3].

For instance, one study found that atorvastatin (Lipitor) may interact with warfarin, a common blood thinner, by increasing the risk of bleeding [3]. The study suggested that patients taking both medications should be closely monitored for signs of bleeding [3]. Another study found that atorvastatin may interact with another blood thinner, clopidogrel, by reducing its effectiveness [1].

It is important to consult with a healthcare provider before taking Lipitor or any blood thinner, as they can provide personalized advice based on an individual's medical history and current medications [2].

In conclusion, while there is no evidence to suggest that Lipitor interacts with all blood thinners, caution should be exercised when taking both medications simultaneously, as some blood thinners may interact with Lipitor and increase the risk of bleeding or reduce the effectiveness of the blood thinner [1,3].

Sources:
[1] https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8861410/
[2] https://www.healthline.com/health/drugs/lipitor
[3] https://www.drugpatentwatch.com/p/tradename/LIPITOR