A 21-year-old female asked:
How long does it take zovirax (acyclovir) to get out your system after you stop taking it?
1 doctor answer • 1 doctor weighed in
Infectious Disease 48 years experience
12 1/2-15 hours: The half life (time for elimination of half the drug) of acyclovir/zovirax is 2 1/2-3 hours in adults with normal kidney function. A drug is fully eliminated after 5 half lives. Therefore for Acyclovir it will be completely eliminated 12 1/2-15 hours after taking the last dose.
4.8k viewsAnswered >2 years ago
Last updated Jun 24, 2014
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