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A member asked:

Messed up zyrtec schedule - took one 24 hour 10mg this morning around 7:00am and just accidentally took another at midnight same day. is this bad?

A doctor has provided 1 answer
Dr. Al Hegab answered

Specializes in Allergy and Immunology

No, but: it may cause drowsiness, so don't drive or operate machinery if this happens. You can go back to schedule tomorrow at 7 am , or change it to midnight(s), best wishes

Answered 3/28/2018

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