There is no specific information available on whether any antihistamines should be avoided with Lipitor (atorvastatin). However, it is important to note that there may be potential drug interactions between Lipitor and certain antihistamines.

According to GoodRx [2], there are no known interactions between Lipitor and Paxlovid (nirmatrelvir/ritonavir), an antiviral medication used to treat COVID-19. However, the website does not provide information on interactions with antihistamines.

DrugPatentWatch [1] provides a comprehensive list of drugs that have potential interactions with Lipitor, but antihistamines are not included.

The FDA [3] warns that grapefruit juice can interact with Lipitor and increase the risk of side effects. Grapefruit juice contains compounds that can interfere with the enzymes responsible for breaking down Lipitor in the body, leading to higher levels of the drug in the bloodstream. This can increase the risk of side effects such as muscle pain and liver damage.

In conclusion, while there is no specific information on antihistamines to avoid with Lipitor, it is important to be cautious when taking any medication in combination with Lipitor. It is recommended to consult with a healthcare provider or pharmacist before taking any new medication or supplement while on Lipitor.

Sources:
[1] https://www.drugpatentwatch.com/p/tradename/LIPITOR
[2] https://www.goodrx.com/paxlovid/drug-interactions
[3] https://www.fda.gov/consumers/consumer-updates/grapefruit-juice-and-some-drugs-dont-mix