A member asked:

I'm taking the maximum dose of benadryl (diphenhydramine) for an allergy to amoxicillin, but experiencing dry mouth and anxiety. can i switch to zyrtec? how long should i wait after my last benadryl (diphenhydramine) to take zyrtec?

2 doctors weighed in across 2 answers
Dr. Michael Finkelstein answered

Specializes in Internal Medicine

Antihistamines: you can start zyrtec (cetirizine) tonight it too has sedative effects so be aware not to drive or use heavy machinery

Answered 6/9/2014

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Medications: See your prescribing Doctor for an answer. Are you still taking the amoxicillin? You should have been switched to a different antibiotic. Don't try balancing medications yourself, see your Doctor.

Answered 9/29/2016

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