Lipitor (atorvastatin) is a medication that is used to lower cholesterol levels in the body. According to Drug Patent Watch [1], there are no known interactions between Lipitor and vitamins. However, it is important to note that certain supplements may interact with statins, which are a class of drugs that includes Lipitor.

ConsumerLab [3] recommends avoiding supplements that contain large amounts of antioxidants, such as vitamin E, while taking statins. This is because statins may interfere with the body's ability to absorb these nutrients. Additionally, taking high doses of niacin (vitamin B3) along with statins may increase the risk of muscle damage.

SingleCare [2] also notes that grapefruit and grapefruit juice can interact with Lipitor and other statins, increasing the risk of side effects. This is because grapefruit can interfere with the metabolism of these drugs, leading to higher levels of the medication in the body.

In conclusion, while there are no known interactions between Lipitor and vitamins, it is important to be cautious when taking supplements while on statins. It is recommended to avoid high doses of vitamin E and niacin, and to avoid grapefruit and grapefruit juice. As always, it is important to consult with a healthcare provider before starting any new medications or supplements.

Sources:
[1] https://www.drugpatentwatch.com/p/tradename/LIPITOR
[2] https://www.singlecare.com/blog/atorvastatin-interactions/
[3] https://www.consumerlab.com/answers/which-drugs-should-be-avoided-when-taking-statins/statin-supplement-interactions/