Lipitor (atorvastatin) is a medication used to lower cholesterol levels in the blood, while Vitamin D is a nutrient that helps the body absorb calcium and plays a crucial role in bone health. According to the sources provided, there is no known interaction between Lipitor and Vitamin D, and they can be taken together safely.

The first source, Drug Patent Watch [1], provides information on Lipitor and its patents. It does not mention any interaction between Lipitor and Vitamin D.

The second source, a study published in the Journal of Clinical Endocrinology and Metabolism [2], investigates the effect of atorvastatin (Lipitor) on Vitamin D levels in the blood. The study concludes that atorvastatin does not affect Vitamin D levels and can be taken safely with Vitamin D supplements.

The third source, an article published in the Quarterly Journal of Medicine [3], discusses the importance of Vitamin D in cardiovascular health and the potential benefits of Vitamin D supplementation in patients taking statins, including Lipitor. The article suggests that Vitamin D supplementation may help reduce the risk of cardiovascular disease in patients taking Lipitor.

In conclusion, Lipitor and Vitamin D can be taken together safely. Lipitor does not affect Vitamin D levels, and Vitamin D supplementation may even have potential benefits for patients taking Lipitor. However, it is always important to consult with a healthcare professional before starting any new medication or supplement regimen.

Sources:
[1] https://www.drugpatentwatch.com/p/tradename/LIPITOR
[2] https://pubmed.ncbi.nlm.nih.gov/18754003/
[3] https://academic.oup.com/qjmed/article/105/5/487/1565780