Lipitor is a prescription drug that is used to lower cholesterol levels in the body. When taking Lipitor, it is important to be aware of any potential drug interactions, including those with over-the-counter (OTC) medications.

According to the drug interaction checker on Drugs.com [2], there are several OTC drugs that may interact with Lipitor. These include aspirin, ibuprofen, naproxen, and certain cold and allergy medications that contain pseudoephedrine or phenylephrine. These medications can increase the risk of side effects such as stomach bleeding, kidney problems, and high blood pressure.

It is also important to note that Lipitor may interact with certain prescription medications. For example, the antiviral drug ritonavir, which is used to treat HIV and hepatitis C, can increase the levels of Lipitor in the blood, potentially leading to an increased risk of side effects [3].

As always, it is important to talk to your healthcare provider before taking any new medications, including OTC drugs. They can help you determine if a medication is safe to take with Lipitor and can recommend alternative medications if necessary.

Sources:
[2] https://www.drugs.com/drug-interactions/atorvastatin.html
[3] https://www.covid19treatmentguidelines.nih.gov/therapies/antivirals-including-antibody-products/ritonavir-boosted-nirmatrelvir--paxlovid-/paxlovid-drug-drug-interactions/