Lipitor, also known as atorvastatin, is a commonly prescribed medication used to treat high cholesterol levels. According to the sources provided, there is a risk of drug interactions with Lipitor.

DrugPatentWatch [1] states that there are 293 patents for Lipitor, which means that there are many different versions of the drug. This can lead to different drug interactions depending on the specific version of Lipitor that is being taken.

GoodRx [2] notes that there are 368 drugs that may interact with Lipitor, including 92 major drug interactions. Major drug interactions can cause serious harm or even death. Some of the drugs that may interact with Lipitor include antifungal medications, antibiotics, and drugs used to treat HIV/AIDS.

Drugs.com [3] also lists several potential drug interactions with Lipitor, including interactions with certain antibiotics, antifungal medications, and HIV medications. The website notes that it is important to inform your doctor about all medications, supplements, and vitamins that you are taking before starting Lipitor.

In conclusion, there is a risk of drug interactions with Lipitor. It is important to inform your doctor about all medications, supplements, and vitamins that you are taking before starting Lipitor to avoid potential interactions. Patients should also consult with their doctor or pharmacist before taking any new medications while on Lipitor.

Sources:
[1] https://www.drugpatentwatch.com/p/tradename/LIPITOR
[2] https://www.goodrx.com/atorvastatin/interactions
[3] https://www.drugs.com/drug-interactions/atorvastatin,lipitor.html