Lipitor (atorvastatin) is a medication used to lower cholesterol levels in the blood and reduce the risk of heart disease. It is important to be aware of potential drug interactions when taking Lipitor, as some medications can increase the risk of side effects or decrease the effectiveness of the medication.

According to DrugPatentWatch [1], there are over 300 drugs that have potential interactions with Lipitor. Some of the most common medications that should be avoided or used with caution when taking Lipitor include antibiotics like erythromycin and clarithromycin, antifungal medications like ketoconazole and itraconazole, and HIV medications like ritonavir and saquinavir. These medications can increase the levels of Lipitor in the blood, which can increase the risk of side effects such as muscle pain and liver damage.

GoodRx [2] also lists several medications that should be avoided or used with caution when taking Lipitor. These include other cholesterol-lowering medications like gemfibrozil and fenofibrate, as well as blood thinners like warfarin and heparin. These medications can increase the risk of bleeding and other side effects when taken with Lipitor.

Drugs.com [3] provides a comprehensive list of potential drug interactions with Lipitor, including both prescription and over-the-counter medications. Some of the most common medications that should be avoided or used with caution when taking Lipitor include antacids, birth control pills, and certain antidepressants.

It is important to discuss any medications you are taking with your healthcare provider before starting Lipitor. Your healthcare provider can help you determine if there are any potential drug interactions and recommend any necessary adjustments to your medication regimen.

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