A member asked:

Will claritin (loratadine) protect against drug allergies for a full 24hrs? is it safe to use it if i've had hives from other, unrelated antihistamine pills?

A doctor has provided 1 answer

Dr. John Chiu answered

Safe but...: It may last that long but may not be potent enough to control your hives. You may need to up the dose to 4x daily. It is unusual however to develop hives from taking any kind of antihistamine and thus i would suggest that you consult an allergist to sort this out.

Dr Fisher agreed

Answered 6/5/2014

4.6k views

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A member asked:

Will claritin (loratadine) protect against drug allergies for a full 24hrs? is it safe to use it if i've had hives from other, unrelated antihistamine pills?

A doctor has provided 1 answer

Dr. John Chiu answered

Dr Fisher agreed

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