None.: Cetirizine makes 10-15% of people sleepy. Other than that it is very well tolerated. It is actually a metabolite of hydroxyzine, an antihistamine that has been around for decades.
Answered 7/16/2014
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A doctor has provided 1 answer
A doctor has provided 1 answer
A doctor has provided 1 answer
A doctor has provided 1 answer
A doctor has provided 1 answer
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