Antihistamines are used to relieve or prevent allergy symptoms. When your body is exposed to allergens, it releases histamines. Histamines can cause itching, sneezing, runny nose and watery eyes. Antihistamines prevent histamines from causing these symptoms.An antihistamine can be taken by mouth, through a nasal spray or as an injection.
A Answers (3)
Stacy Wiegman, PharmD, Pharmacy, answered
Honor Society of Nursing (STTI) answered
An antihistamine is a type of drug that blocks the action of histamines, which can cause fever, itching, sneezing, a runny nose, and watery eyes. Antihistamines are used to prevent fevers in patients receiving blood transfusions and to treat allergies, coughs, and colds.
This answer is based on source information from the National Cancer Institute.
American Red Cross answeredAn antihistamine is a type of medication. It lessens the effects of compounds released by the body during an allergic reaction.