Lipitor is a brand name for the drug atorvastatin, which is used to lower cholesterol levels in the blood. According to WebMD [2], there are no known interactions between Lipitor and allergy medication. However, it is important to inform your doctor of all medications you are taking, including over-the-counter medications, to ensure there are no potential interactions.

DrugPatentWatch [1] provides information on Lipitor's patent status, expiration date, and potential generic alternatives. It does not provide information on drug interactions.

The COVID-19 Treatment Guidelines [3] provide information on the drug interactions of Paxlovid, which is a combination of ritonavir and nirmatrelvir used to treat COVID-19. The guidelines state that there are potential interactions between Paxlovid and atorvastatin, which could increase the risk of side effects such as muscle pain or weakness. However, this information is specific to the use of Paxlovid and does not apply to the use of atorvastatin alone.

In summary, there are no known interactions between Lipitor (atorvastatin) and allergy medication. However, it is important to inform your doctor of all medications you are taking to ensure there are no potential interactions. The information on potential interactions between Paxlovid and atorvastatin is specific to the use of Paxlovid and does not apply to the use of atorvastatin alone.

Sources:
[1] https://www.drugpatentwatch.com/p/tradename/LIPITOR
[2] https://www.webmd.com/drugs/2/drug-3330/lipitor-oral/details
[3] https://www.covid19treatmentguidelines.nih.gov/therapies/antivirals-including-antibody-products/ritonavir-boosted-nirmatrelvir--paxlovid-/paxlovid-drug-drug-interactions/