When taking Lipitor (atorvastatin) and vitamin D together, there are potential side effects that should be considered. Lipitor is a medication used to lower cholesterol levels, while vitamin D is essential for maintaining bone health and supporting the immune system.

According to the drug patent information provided by Drug Patent Watch [1], the potential side effects of Lipitor include muscle pain, weakness, and tenderness. These side effects are relatively common and may occur in up to 10% of patients. Additionally, more serious side effects such as liver problems, allergic reactions, and rhabdomyolysis (a severe muscle condition) are possible but occur less frequently.

The study published in the Quarterly Journal of Medicine [3] discusses the relationship between statins (such as Lipitor) and vitamin D deficiency. The study suggests that statins may contribute to vitamin D deficiency by reducing the production of vitamin D in the skin. However, the study did not specifically investigate the potential side effects of combining Lipitor and vitamin D.

While the provided sources do not directly address the potential side effects of taking Lipitor and vitamin D together, it is important to note that combining medications can sometimes lead to interactions or adverse effects. It is always recommended to consult with a healthcare professional or pharmacist before starting any new medications or supplements, including Lipitor and vitamin D, to ensure their safe and effective use.

In summary, Lipitor and vitamin D may have potential side effects when taken together. Lipitor can cause muscle-related side effects, and while the study mentioned a possible link between statins and vitamin D deficiency, it did not specifically address the combination of Lipitor and vitamin D. Consulting a healthcare professional is advised to determine the best course of action and to address any concerns about potential side effects.

Sources:
[1] Drug Patent Watch. (n.d.). Lipitor. Retrieved from https://www.drugpatentwatch.com/p/tradename/LIPITOR
[3] Kendrick, J., & Chonchol, M. (2012). Nontraditional risk factors for cardiovascular disease in patients with chronic kidney disease. Quarterly Journal of Medicine, 105(5), 487-494. doi:10.1093/qjmed/hcs047