Lipitor is a commonly prescribed medication for lowering cholesterol levels in the body. It belongs to a class of drugs called statins, which work by inhibiting the production of cholesterol in the liver [1]. While it is generally safe and effective in reducing the risk of heart disease, some people have raised concerns about its potential impact on post-workout gains.

A study published in the Journal of Clinical Endocrinology and Metabolism found that statin use was associated with a decrease in muscle strength and size in older men [2]. However, it is important to note that this study was conducted on a small sample size and did not specifically focus on Lipitor.

Another study published in the Journal of the American College of Cardiology found that statin use did not significantly impact muscle strength or exercise capacity in healthy individuals [3]. The study also found that statin use did not affect the body's ability to adapt to exercise training.

While some people have reported muscle pain and weakness as a side effect of statin use, the British Heart Foundation notes that this is a rare occurrence and may be related to other factors such as age, genetics, and coexisting medical conditions [4].

In conclusion, while some studies have suggested that statin use may have a negative impact on muscle strength and size, the evidence is not conclusive. Additionally, the British Heart Foundation notes that any potential side effects of statin use are generally outweighed by the benefits in reducing the risk of heart disease. It is always important to consult with a healthcare provider before starting any new medication or exercise regimen.

Sources:
[1] https://www.drugpatentwatch.com/p/tradename/LIPITOR
[2] https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3463373/
[3] https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5967357/
[4] https://www.bhf.org.uk/what-we-do/news-from-the-bhf/news-archive/2019/august/scientists-identify-potential-cause-of-statin-related-muscle-pain