Linked from
The 19 pages that link to Antihistamine, each with the reason it gives.
Allergic rhinitisRelated: It can relieve itching, sneezing, and runny nose caused by histamine.
AmineRelated: Many antihistamines contain amine groups that help bind their molecular targets.
HypnoticRelated: Some over-the-counter antihistamines cause drowsiness and are used as sleep aids.
Cat allergyRelated: It can relieve sneezing, itching, and runny nose caused by cat exposure.
HivesRelated: Blocking histamine signaling often reduces itching and new wheal formation.