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A member asked:

How much antihistamine for allergic reaction?

A doctor has provided 1 answer
Dr. Michael Zacharisen answered

Specializes in Allergy and Immunology

depends on product: For children over 12 years old, the usual dose for Claritin and zyrtec is 10 mg a day, for xyzal (levocetirizine) and Clarinex 5 mg a day, while the dose for Allegra is 180 mg once a day or 60 mg twice a day. Pediatric doses are based on age rather than weight. There are dose adjustments for liver and kidney disease.

Dr Pappas and 4 doctors agreed

Answered 6/24/2014

4.8k views

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