Lipitor is a medication that is commonly used to lower cholesterol levels in the body. While it is effective in reducing the risk of heart disease and stroke, there is some evidence to suggest that it may have a negative impact on workout endurance.

According to a study published in the Journal of the American College of Cardiology [2], statins like Lipitor can cause muscle damage and reduce muscle function, which can lead to decreased exercise performance. The study found that statin use was associated with decreased peak exercise capacity and reduced oxygen uptake during exercise.

Additionally, an article from Healthline [3] suggests that statins can cause muscle pain and weakness, which can make it difficult to engage in physical activity. This can be especially problematic for athletes or individuals who are trying to improve their fitness levels.

It is important to note, however, that the impact of Lipitor on workout endurance may vary depending on the individual. Some people may experience little to no negative effects, while others may experience more significant reductions in exercise performance.

Overall, while Lipitor is an effective medication for managing cholesterol levels, it may have a negative impact on workout endurance for some individuals. Anyone who is concerned about the impact of Lipitor on their exercise performance should speak with their healthcare provider.

Sources:
[2] https://pubmed.ncbi.nlm.nih.gov/28807461/
[3] https://www.healthline.com/health-news/statins-and-other-common-meds-can-negatively-affect-your-workout