Lipitor is a brand name for the drug atorvastatin, which is used to lower cholesterol levels in the body [1]. Antihistamines, on the other hand, are drugs used to treat allergic reactions by blocking the action of histamine in the body [2].

There is limited information available regarding the interaction between Lipitor and antihistamines. One study published in the Journal of Clinical Pharmacology suggests that there is no significant interaction between atorvastatin and antihistamines such as loratadine, cetirizine, and fexofenadine [3]. However, it is important to note that this study was conducted on a small sample size and further research may be needed to confirm these findings.

According to Drugs.com, there are no known interactions between Lipitor and common antihistamines such as Benadryl (diphenhydramine), Claritin (loratadine), and Zyrtec (cetirizine) [4]. However, it is always recommended to consult with a healthcare provider before taking any new medications, especially if you are already taking Lipitor or have any underlying medical conditions.

In conclusion, based on the limited information available, there does not appear to be a significant interaction between Lipitor and antihistamines. However, it is important to consult with a healthcare provider before taking any new medications to ensure safety and effectiveness.

Sources:
[1] https://www.drugpatentwatch.com/p/tradename/LIPITOR
[2] https://pubmed.ncbi.nlm.nih.gov/22947909/
[3] https://pubmed.ncbi.nlm.nih.gov/17192594/
[4] https://www.drugs.com/drug-interactions/allergy-relief-tablets-with-atorvastatin-1486-14544-276-0.html