antihistamine medications that are not combined with other medications are safe to take with blood pressure medications and should not affect your blood pressure. we tend to be more concerned about nasal decongestants affecting blood pressure more than the antihistamines when treating allergy symptoms. i suggest working with your local pharmacist to help select a product for the specific symptoms you are trying to treat that would not affect your blood pressure.
what allergy medications are safe when i already take norvasc for my blood pressure?