6 doctors weighed in:
Any bad side effects of zyrtec (cetirizine)?
6 doctors weighed in

Dr. Vijay Saigal
Internal Medicine
5 doctors agree
In brief: Sleepiness
10% of the patients will experience sleepiness.
Best time to take it is at bedtime to cut down this side effect.

In brief: Sleepiness
10% of the patients will experience sleepiness.
Best time to take it is at bedtime to cut down this side effect.
Dr. Vijay Saigal
Dr. Vijay Saigal
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