Lipitor (atorvastatin) is a prescription medication used to lower cholesterol levels in the blood. It belongs to a class of drugs called statins, which work by blocking an enzyme that produces cholesterol in the liver [1]. According to GoodRx [2], Lipitor may interact with certain over-the-counter medications, including supplements, antacids, and pain relievers. It is important to consult with a healthcare provider before taking any new medications, including over-the-counter drugs, while on Lipitor.

GoodRx [2] provides a list of medications that may interact with Lipitor, including certain antibiotics, antifungal medications, and medications used to treat HIV. For example, ritonavir-boosted nirmatrelvir (Paxlovid) is an antiviral medication used to treat COVID-19. According to the NIH COVID-19 Treatment Guidelines [3], Paxlovid may interact with Lipitor, leading to an increased risk of side effects, such as muscle pain or weakness.

In conclusion, Lipitor may interact with certain over-the-counter medications, as well as prescription medications, including antiviral medications used to treat COVID-19. It is important to consult with a healthcare provider before taking any new medications while on Lipitor to avoid potential interactions and side effects.

Sources:
[1] https://www.drugpatentwatch.com/p/tradename/LIPITOR
[2] https://www.goodrx.com/atorvastatin/interactions
[3] https://www.covid19treatmentguidelines.nih.gov/therapies/antivirals-including-antibody-products/ritonavir-boosted-nirmatrelvir--paxlovid-/paxlovid-drug-drug-interactions/