Klonopin (clonazepam): The elimination half-life of Klonopin (clonazepam) is 18-50 hours. Since it takes 5 of these half-lives to eliminate the substance from your system, this would be 5 x 50 = 250 hours or a little more than 10 days at the latest. Faster metabolism could eliminate the medication closer to the shorter estimation point. We don't know about your own system, though. Best wishes.
Answered 5/2/2017
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