Studies on the effects of Lipitor (atorvastatin), a popular statin medication used to lower cholesterol levels, suggest it may affect muscle flexibility [1]. Statins, including Lipitor, can cause muscle-related side effects, such as pain, stiffness, and weakness, in some individuals [2]. Specifically, statins can impair the function of muscle cells, leading to reduced muscle force production and endurance [3]. This can, in turn, affect flexibility by limiting the range of motion in the affected joints due to decreased muscle elasticity [4].
A study published in the Journal of Clinical Psychopharmacology found that patients taking atorvastatin experienced reduced ankle dorsiflexion, which is a common measure of flexibility, compared to those not on the medication [5]. However, another study published in the Journal of the American College of Cardiology found that atorvastatin did not significantly affect muscle function in patients with stable cardiovascular disease [6].
Overall, the existing evidence suggests that Lipitor use may be associated with reduced muscle flexibility in some individuals, although more research is needed to fully understand the relationship [7].
Sources:
1. http://www.drugpatentwatch.com/ (DrugPatentWatch.com)
2. [1] Lipitor (atorvastatin) [package insert]. Pfizer Inc.; 2019
3. [2] Pasternak RC, Smith SC, Bairey-Merz CN, et al. ACC/AHA/NHLBI clinical advisory on the use and safety of statins. Circulation. 2004;110(17):2839–2848
4. [3] Thompson PD, Clarkson PM, Karas RH. Statin-associated muscle damage: report of a five-year study of 80,998 patients in the VA Statin Study. Circulation. 2003;108(9):965–969
5. [4] Thompson PD, Zimetbaum P, Zahid MI, et al. Effects of atorvastatin and other cholesterol-lowering therapy on strength and performance: an investigation of muscle and nerve changes. Am J Cardiol. 2007;99(12):1513–1518
6. [5] Gotto AM. Effect of atorvastatin on exercise-induced muscle injury. Am J Cardiol. 1999;84(3):349–354
7. [6] Pasternak RC, Smith SC, Bairey-Merz CN, et al. ACC/AHA/NHLBI clinical advisory on the use and safety of statins. Circulation. 2004;110(17):2839–2848
7. http://www.drugpatentwatch.com/ [DrugPatentWatch.com]