Cetirizine is an antihistamine that reduces the effects of natural chemical histamine in the body. Histamine can produce symptoms of sneezing, itching, watery eyes, and runny nose.
Cetirizine is used to treat cold or allergy symptoms such as sneezing, itching, watery eyes, or runny nose.
Cetirizine is also used to treat itching and swelling caused by chronic urticaria (hives).
All Day Allergy, All Day Allergy Children's, Indoor/Outdoor Allergy Relief, ZyrTEC, ZyrTEC Children's Dye-Free Sugar-Free, ZyrTEC Children's Perfect Measure, ZyrTEC Dissolve, ZyrTEC Hives, ZyrTEC Liquid Gels
Side effects include:
Adults and children ≥12 years of age: Somnolence, fatigue, dry mouth. Insomnia reported with cetirizine (the active ingredient contained in All Day Allergy Children's) hydrochloride-pseudoephedrine hydrochloride fixed combination.
Children 2–11 years of age: Headache, pharyngitis, abdominal pain.
Children 6 months to 2 years of age: Irritability, fussiness, insomnia, fatigue, malaise.
(cetirizine hydrochloride) liquid