Cetirizine — Drug Interactions, Alcohol & Pregnancy Guide

Last reviewed: · Source: US FDA drug label database

About Cetirizine

Cetirizine is a second-generation antihistamine for allergies and hay fever. Less sedating than older antihistamines but can still cause drowsiness in some people. Take at night if drowsiness is an issue.

Also sold as: Zyrtec, Piriteze, Benadryl One A Night

Drug class Second-generation antihistamine
Used for Hay fever, Allergic rhinitis, Urticaria (hives), Allergic skin conditions
Max adult dose 10mg once daily
OTC in UK Yes

Cetirizine and Alcohol

🟡 USE WITH CAUTION

Use caution — cetirizine and alcohol both cause drowsiness and together the sedative effect can be significantly enhanced.

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Cetirizine in Pregnancy

🟡 USE WITH CAUTION

Cetirizine is one of the preferred antihistamines in pregnancy — evidence is reassuring, though loratadine is often listed first choice.

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Cetirizine — Drug Combinations

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Not sure if Cetirizine is safe with your other medications?

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