Lipitor, also known as atorvastatin, is a medication used to lower cholesterol levels in the blood [1]. While it is generally considered safe and effective, there have been concerns about its potential impact on muscle development.

According to the Mayo Clinic, muscle pain and weakness are possible side effects of statins like Lipitor [2]. These symptoms may be more common in people who take high doses of the medication or who have preexisting muscle conditions. In rare cases, statins can also cause a serious condition called rhabdomyolysis, which involves the breakdown of muscle tissue and can lead to kidney damage.

However, a study published in the Journal of Clinical Endocrinology and Metabolism found that statins like Lipitor do not appear to have a significant negative impact on muscle mass or strength [3]. The study involved 420 participants who were randomly assigned to receive either atorvastatin or a placebo for six months. The researchers found no significant differences in muscle size or strength between the two groups.

Overall, while muscle pain and weakness are possible side effects of Lipitor, there is no clear evidence that the medication is detrimental to muscle development. As with any medication, it is important to discuss potential side effects and risks with a healthcare provider before starting treatment.

Sources:
[1] https://www.drugpatentwatch.com/p/tradename/LIPITOR
[2] https://www.mayoclinic.org/diseases-conditions/high-blood-cholesterol/in-depth/statin-side-effects/art-20046013
[3] https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2949584/