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A member asked:
How long does flagyl stay in your system?
A doctor has provided 1 answer
40 hours: The half life (time for elimination of half the drug) of Metronidazole or Flagyl is 8 hours. Total elimination occurs after 5 half lives from the last dose. Therefore for Metronidazole all drug would be eliminated 40 hours after the last dose.
Answered 7/19/2020
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