Lipitor (atorvastatin) is a medication used to lower cholesterol levels in the blood. Vitamin D is a nutrient that helps the body absorb calcium and maintain healthy bones.

According to DrugPatentWatch [1], there is no known interaction between Lipitor and vitamin D. However, it is always recommended to consult with a healthcare professional before taking any new medication or supplement.

A study published in the Journal of Clinical Endocrinology and Metabolism [2] found that taking vitamin D supplements with atorvastatin did not have a negative effect on cholesterol-lowering or muscle-related side effects. The study concluded that vitamin D supplementation may even have a positive effect on muscle strength in patients taking atorvastatin.

ConsumerLab [3] also states that there is no significant interaction between statins (including Lipitor) and vitamin D supplements. However, they recommend monitoring vitamin D levels in patients taking statins, as some studies suggest that statins may reduce vitamin D levels in the body.

In conclusion, there is no evidence of a negative interaction between Lipitor and vitamin D. However, it is always best to consult with a healthcare professional before taking any new medication or supplement. Monitoring vitamin D levels may also be recommended for patients taking statins.

Sources:
[1] https://www.drugpatentwatch.com/p/tradename/LIPITOR
[2] https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5623087/
[3] https://www.consumerlab.com/answers/which-drugs-should-be-avoided-when-taking-statins/statin-supplement-interactions/