noun
- a drug that counteracts the effects of histamine, used especially to treat allergies
Usage: medical
Examples
- She took an antihistamine to relieve her hay fever symptoms.
- The doctor prescribed a stronger antihistamine for his severe allergic reaction.
- Many over-the-counter antihistamines can cause drowsiness.
- The antihistamine helped reduce the itching from the insect bite.
- He keeps antihistamines in his medicine cabinet during allergy season.
- The pharmacist recommended a non-drowsy antihistamine for daytime use.