Lipitor is a brand name for the drug atorvastatin, which is used to lower cholesterol levels in the blood. According to the sources provided, there are no known interactions between antihistamines and atorvastatin. However, it is always recommended to consult with a healthcare provider before taking any new medication, including antihistamines, especially if you are taking other medications or have underlying medical conditions.

The website drugpatentwatch.com lists Lipitor as a statin drug used to lower cholesterol levels. The website drugs.com provides a drug interaction checker, which shows that there are no known interactions between allergy relief tablets and atorvastatin. The NHS website provides information on atorvastatin and its potential interactions with other medications and herbal supplements, but it does not mention any specific interactions between antihistamines and atorvastatin.

In summary, based on the sources provided, there are no known interactions between antihistamines and atorvastatin (Lipitor). However, it is always recommended to consult with a healthcare provider before taking any new medication, including antihistamines, especially if you are taking other medications or have underlying medical conditions.

Sources:
[1] https://www.drugpatentwatch.com/p/tradename/LIPITOR
[2] https://www.drugs.com/drug-interactions/allergy-relief-tablets-with-atorvastatin-1486-14544-276-0.html
[3] https://www.nhs.uk/medicines/atorvastatin/taking-atorvastatin-with-other-medicines-and-herbal-supplements/