Cetirizine hydrochloride is a medication used for the treatment of allergies, hay fever, angioedema, and hives. It is a second-generation H1-receptor antagonist antihistamine and works by blocking H1 histamine receptors. It is a major metabolite of hydroxyzine, and has the same basic side effects, including dry mouth.
Antihistamines :: Drugs and Medications

DrugDigest: Cetirizine ( Zyrtec ) - Information on dosage, usage, side effects, interactions, and drug comparisons.
MedlinePlus: Cetirizine - Provides information on usage, precautions, side effects and brand names when available. Data provided by various government agencies and health-related organizations.
Meta Description: [ Cetirizine ]
Zyrtec - Cetirizine HCl and pseudoephedrine HCl.
Meta Description: [ Manage your allergies. Learn about an allergy treatment option at ZYRTEC.com. ]
Zyrtec - US product prescribing information from Pfizer. (Requires Adobe Acrobat reader)
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