Antihistamine, found in many preparations for allergies and respiratory infections, used to treat rhinitis, skin rashes, and pruritis. Adverse effects include sedation, dry mouth, and rapid heart rate.
An antihistamine used to treat allergic reactions such as hay fever and urticaria. It is administered by mouth or is applied to the skin in an ointment; side-effects may include drowsiness, digestive upsets, and skin reactions.