<unk>  is a H1-blocking agent that is FDA approved for the treatment of seasonal and perennial allergic rhinitis, vasomotor rhinitis, allergic conjunctivitis due to inhalant allergens and foods, mild uncomplicated allergic skin manifestations of urticaria and angioedema, and dermatographism.   Common adverse reactions include epigastric pain, coordination problem, dizziness, sedation, somnolence, and excessive bronchial secretions.
Carbinoxamine
Chlorphenoxamine
Chlorbenzoxamine
Methoxamine
Medifoxamine
Metopimazine
Phenyltoloxamine
Dexchlorpheniramine