Lipitor is a medication that is commonly used to lower cholesterol levels in the body [1]. When taking Lipitor, it is important to be aware of any potential interactions with other medications or supplements. According to the NHS, certain herbal supplements can interact with Lipitor and affect its effectiveness [2]. For example, St. John's Wort can reduce the effectiveness of Lipitor, while grapefruit juice can increase the risk of side effects.

ConsumerLab also advises caution when taking Lipitor with certain supplements. For example, supplements containing red yeast rice, which can also lower cholesterol levels, may increase the risk of side effects when taken with Lipitor [3].

It is important to speak with a healthcare provider before taking any new medications or supplements, especially when taking Lipitor. They can provide guidance on potential interactions and help determine the best course of treatment.

Sources:
[1] https://www.drugpatentwatch.com/p/tradename/LIPITOR
[2] https://www.nhs.uk/medicines/atorvastatin/taking-atorvastatin-with-other-medicines-and-herbal-supplements/
[3] https://www.consumerlab.com/answers/which-drugs-should-be-avoided-when-taking-statins/statin-supplement-interactions/