Zyrtec tablets, chewable tablets, and Children's Hives Relief syrup are approved for use in children as young as six years old. Children's Zyrtec Allergy syrup is approved for use in children age two years and older.
DRUG INTERACTIONS: Cetirizine should be taken only in doses prescribed. Increasing the dose can be dangerous. When taking cetirizine with theophylline the dose of theophylline may need to be reduced. Cetirizine occasionally can cause sleepiness . Cetirizine can be taken with erythromycin or ketaconazole without the increased risk of heart irregularities common to other non-sedating antihistamines. Cetirizine also can be used to treat children.
DOSING: Cetirizine should be taken at doses specifically directed by a physician. Cetirizine can be taken with food.
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