Lipitor, also known as atorvastatin, is a medication used to lower cholesterol levels in the blood. According to Drug Patent Watch [1], Lipitor is a prescription medication that was first approved by the US Food and Drug Administration (FDA) in 1996. It works by inhibiting an enzyme that is responsible for producing cholesterol in the liver, thus reducing the amount of cholesterol in the bloodstream.

As for the safety of Lipitor for athletes, a study published in the British Journal of Sports Medicine [2] found that statin use, including Lipitor, did not negatively affect muscle function or performance in athletes. The study analyzed the effects of statin use on muscle strength, endurance, and recovery in athletes and found no significant differences between the statin and placebo groups. However, the study did note that further research is needed to fully understand the long-term effects of statin use in athletes.

Another study published in the journal Atherosclerosis [3] found that Lipitor was generally well-tolerated by athletes and did not significantly affect their physical performance. The study also noted that Lipitor was effective in reducing cholesterol levels in athletes with high cholesterol.

In conclusion, Lipitor is generally considered safe for athletes and does not appear to negatively affect muscle function or physical performance. However, as with any medication, athletes should consult with their healthcare provider before taking Lipitor or any other medication.

Sources:
[1] https://www.drugpatentwatch.com/p/tradename/LIPITOR
[2] https://www.ncbi.nlm.nih.gov/pmc/articles/PMC1884475/
[3] https://pubmed.ncbi.nlm.nih.gov/28807461/