Skip to Content

How long does klonopin stay in your system?

Question is Closed
Report Favorite

Answers (1)

2 May 2010

The quick answer is this: The half-life of Klonopin/Clonazepam is between 18-50 hours, depending on a wide variety of factors (primarily metabolic rate). This means that the amount of Klonopin in your system divides in half every 18-50 hours, so take 1mg and 18-50 hours later you have .5mg left in your system, another 18-50 hours pass and you have 0.25mg in your system, etc. etc. Benzos tend to stick around for a while.

Votes: +3
ginamarie0102 25 May 2012

So does this mean that 1 mg klonopin would stay in your system for 3-4 days? I dnt take them as often, i was perscribed klonopin before I got on methadone and now that im on methadone i was told that mixing it with benzos can be a deadly combination.. So I stopped taking my perscription,BUT I still have some of my medication of klonopin on me. I have bad anxiety and get panic attacks. I haven't been taking the klonopin and been doing really well. I just wanted to know incase I may need one, I get urine tested once or twice a month and I want to be on the safe side. I seen this post was from 2010 hope u still can help me!! Thanks!!:)

Further Information

Search for questions

Still looking for answers? Try searching for what you seek or ask your own question.

Similar questions

How long does Klonopin stay in your system after you take it? 8 hours? 12 hours?

How long does Klonopin, not xanax, stay in your system after you take it?

1 answer 22 Oct 2010

How long does 8-10mg of clonazopam, or klonopin, stay in your system ?

my first UA will most likely be on the 3rd of May. I took the clonazopam last, on the 17th of this month .. HELP !!!

2 answers 17 Apr 2011

I'm a 210 pound male have used .5 klonopin 4 to 6 times a day how long will it stay in my system?

I've got a ua in 2 weeks will it show up

0 answers 30 Jul 2015