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A member asked:
What are the side effects of zyrtec (cetirizine) and how can i prevent them?
A doctor has provided 1 answer
Effects vs sides: The most common side effect is sedation, about 13%. Sometimes taking before bedtime helps, but some people still are affected and need a less sedating antihistamine. Refer to the drug information label for other side effects.
Answered 4/29/2014
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