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. According to Drug Patent Watch [1], there are no known drug interactions between Lipitor and Vitamin D. However, it is important to note that both Lipitor and Vitamin D can interact with other medications. For example, Lipitor may interact with antibiotics, antifungal medications, and certain heart medications, among others [2]. On the other hand, Vitamin D may interact with certain medications used to treat high blood pressure, such as thiazide diuretics [3]. Therefore, it is essential to consult a healthcare provider before taking Lipitor or Vitamin D with other medications to avoid any potential drug interactions.

Sources:
[1] https://www.drugpatentwatch.com/p/tradename/LIPITOR
[2] https://www.drugs.com/drug-interactions/atorvastatin,lipitor-index.html
[3] https://pubmed.ncbi.nlm.nih.gov/18754003/