Lipitor and aspirin are two widely used drugs, but when taken together, there may be potential side effects. Lipitor is a statin medication used to lower cholesterol levels, while aspirin is a nonsteroidal anti-inflammatory drug (NSAID) used to reduce inflammation and pain.

According to Drug Patent Watch [1], the side effects of Lipitor may include muscle pain, weakness, and tenderness, liver problems, and an increased risk of diabetes. Aspirin, on the other hand, can cause gastrointestinal bleeding, stomach ulcers, and kidney problems [2].

A study published in the Journal of Experimental & Clinical Cancer Research [2] suggests that taking Lipitor and aspirin together may have a synergistic effect in inhibiting cancer cell growth. However, the study also noted that the combination of these drugs may increase the risk of gastrointestinal bleeding and other side effects.

Another study published in the National Library of Medicine [3] suggests that taking Lipitor and aspirin together may increase the risk of bleeding in patients who have undergone coronary artery bypass graft surgery. The study recommends that patients should be monitored closely for bleeding complications if they are taking both drugs.

In conclusion, Lipitor and aspirin are two commonly used drugs that may have potential side effects when taken together. While taking these drugs together may have some benefits, it is important to be aware of the potential risks and to discuss any concerns with a healthcare provider.

Sources:
[1] https://www.drugpatentwatch.com/p/tradename/LIPITOR
[2] https://jeccr.biomedcentral.com/articles/10.1186/s13046-016-0304-4
[3] https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7738023/