Doxylamine is a long-acting antihistamine used to treat allergy symptoms and, in combination products, as a sedative for temporary sleep relief. It is typically administered orally in tablet or capsule form and can cause drowsiness; users should avoid activities requiring alertness until they understand their response. The term combines a classic antihistamine core with an ether- or amine-linked side chain, reflecting its pharmacological class and historical naming.
Full pronunciation guide
