What is zyrtec (cetirizine) used for?

Allergy: It's an allergy medication. It can treat running nose, sneezing, itchy watery eyes, itchy nose/throat...

Allergies and hives: Zyrtec (cetirizine) is a new generation antihistamine that is FDA approved for relieving the symptoms of :: Seasonal Allergic rhinitis (hay fever) from pollen in patients over 2 years old Perennial allergic rhinitis: year round allergies in patients over 6 months old Chronic Urticaria (hives) in those over 6 months old It has been shown to prevent itching and decrease size of mosquito bites!

Interaction : Although generally believed not to cause drowsiness, it is best to use with caution especially when taking it with other medications that are known to cause drowsiness because side effects can add up