Lipitor (atorvastatin) is a medication used to lower cholesterol levels in the blood. Antihistamines, on the other hand, are drugs that are used to relieve symptoms of allergies, such as itching, sneezing, and runny nose.

According to the sources provided, there are no known interactions between Lipitor and antihistamines. A study published in the Journal of Clinical Pharmacology [2] concluded that there were no significant pharmacokinetic interactions between atorvastatin and loratadine, which is an antihistamine. Additionally, the drug interaction checker on Drugs.com [3] also states that there are no known interactions between Lipitor and allergy relief tablets.

However, it is always important to consult with a healthcare provider before taking any new medications or combining medications. This is especially true for individuals who have pre-existing medical conditions or are taking other medications, as there may be potential interactions that are not listed in the sources provided.

In conclusion, based on the sources provided, there are no known interactions between Lipitor and antihistamines. However, it is always important to consult with a healthcare provider before taking any new medications or combining medications.

Sources:
[2] https://pubmed.ncbi.nlm.nih.gov/22947909/
[3] https://www.drugs.com/drug-interactions/allergy-relief-tablets-with-atorvastatin-1486-14544-276-0.html