dexchlorpheniramine maleate /deks′klôrfənir″əmēn mal″ē·it/ , an antihistamine. ▪ INDICATIONS: It is prescribed in the treatment of hypersensitivity reactions, including rhinitis, skin rash, and pruritus. ▪ CONTRAINDICATIONS: Asthma or known hypersensitivity to this drug prohibits its use. It should not be given to newborns or lactating mothers. ▪ ADVERSE EFFECTS: Drowsiness, skin rash, hypersensitivity reactions, dry mouth, and tachycardia may occur.