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A member asked:
What should i do if i have taken zyrtec (cetirizine) for four days now in a row, how long til it gets out of my system?
A doctor has provided 1 answer
Half-life: With a half-life of 8 hours roughly, i would give it a few days for zyrtec (cetirizine) to clear out of your system.
Answered 5/8/2014
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