Lipitor, also known as atorvastatin, is a medication that belongs to the class of drugs called statins. It is primarily used to lower cholesterol levels and reduce the risk of heart disease and stroke [1]. According to Drug Patent Watch [1], there is no indication that Lipitor is approved for muscle gain in athletes. In fact, the medication is not designed or intended to be used for this purpose.

A study published in the US National Library of Medicine National Institutes of Health [2] examined the effects of atorvastatin on muscle growth and found that the medication did not increase muscle size or strength in healthy, young men. The study concluded that atorvastatin did not enhance muscle hypertrophy or strength in response to resistance training.

Another study published in PubMed [3] also investigated the effects of atorvastatin on muscle growth and found that the medication did not enhance muscle hypertrophy or strength in healthy, young women. The study concluded that atorvastatin did not improve muscle strength or size in response to resistance training.

In summary, Lipitor is not approved for muscle gain in athletes. Two studies [2][3] found that atorvastatin did not enhance muscle hypertrophy or strength in healthy, young individuals. It is important to note that using Lipitor or any medication for off-label purposes can be dangerous and may have serious side effects. It is always recommended to consult with a healthcare professional before taking any medication for any purpose.

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/