Lipitor is a brand name for the drug atorvastatin, which is used to treat high cholesterol levels. According to the sources provided, there are no specific antihistamines that should be avoided when taking Lipitor. However, it is always recommended to consult with a healthcare provider or pharmacist before taking any new medications or supplements, including antihistamines.

The NHS website provides a list of medications and supplements that may interact with atorvastatin, including some antihistamines such as fexofenadine and loratadine. These interactions may increase the risk of side effects such as muscle pain or weakness. However, the website notes that these interactions are not usually significant and that most people can take atorvastatin with antihistamines without any problems.

The GoodRx website also provides information on potential drug interactions with atorvastatin, including antihistamines such as cetirizine and diphenhydramine. However, the website notes that these interactions are not usually significant and that most people can take atorvastatin with antihistamines without any problems.

In summary, there are no specific antihistamines that should be avoided when taking Lipitor. However, it is always important to consult with a healthcare provider or pharmacist before taking any new medications or supplements to ensure that there are no potential interactions or risks.

Sources:
[1] Drug Patent Watch. Lipitor. https://www.drugpatentwatch.com/p/tradename/LIPITOR
[2] NHS. Atorvastatin: taking it with other medicines and herbal supplements. https://www.nhs.uk/medicines/atorvastatin/taking-atorvastatin-with-other-medicines-and-herbal-supplements/
[3] GoodRx. Paxlovid Drug Interactions. https://www.goodrx.com/paxlovid/drug-interactions