Lipitor (atorvastatin) is a medication used to lower cholesterol levels in the blood and reduce the risk of heart disease and stroke [2]. According to the sources provided, Lipitor may interact with other medications.

Drugpatentwatch [1] reports that Lipitor has 430 drug interactions, including 23 major drug interactions, 368 moderate drug interactions, and 39 minor drug interactions. Major drug interactions may cause serious side effects or affect the effectiveness of the medication, while moderate drug interactions may require dose adjustments or close monitoring by a healthcare provider.

WebMD [2] lists several medications that may interact with Lipitor, including drugs that increase the risk of muscle damage (such as fibrates), drugs that may increase the level of Lipitor in the blood (such as cyclosporine), and drugs that may decrease the level of Lipitor in the blood (such as rifampin).

GoodRx [3] provides a list of drugs that may interact with Lipitor, including medications used to treat HIV, antibiotics, and antifungal medications. The website also notes that grapefruit and grapefruit juice may interact with Lipitor and increase the risk of side effects.

It is important to inform your healthcare provider of all medications, supplements, and vitamins you are taking before starting Lipitor to avoid potential drug interactions. Your healthcare provider may adjust the dose of Lipitor or monitor you more closely if you are taking other medications that may interact with Lipitor.

Sources:
1. https://www.drugpatentwatch.com/p/tradename/LIPITOR
2. https://www.webmd.com/drugs/2/drug-3330/lipitor-oral/details
3. https://www.goodrx.com/atorvastatin/interactions