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How long does clonazepam 1mg stay in your system for?

This question has also been asked and answered here: How long does Klonopin stay in your system?

28 Answers

Avery Culbertson 20 March 2019

How long does Klonopin stay in your system

Votes: +0
Carilove 16 Feb 2019

After two weeks it should be out your system depends on how long it was taken for cause is a long term medication

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Walterpodejko 30 July 2018

How long does Klonopin in your system

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Votes: +0
Ellanick143 17 July 2018

clonazepam can lay in your system for up to 40 hours depending on metabolism or liver or kidney problems

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Shannon6770 23 Oct 2017

I take 4 clonazepam 2mg. daily and it helps me very well. But I know someone that needs to be on it do to his anxiety and anger problems.

Votes: +0
Shady69 28 Sep 2017

I see a lot of different answers and reasons why the question was asked as well. I have been taking 2mg 3 times a day for years due to post traumatic stress syndrome and this works well for me. I however don't take them as prescribed because they make me drowsy. I just take 1 when I feel a panic attack coming on by putting it under my tongue where it will dissolve quickly and I am fine in few mins if it gets me at all is when I am asleep. Now if you suddenly quit taking them and can't get em for insurance reasoning or divorce or whatever. I was taken off of them once and I lost 35 pounds and had night sweets every night for a month then just a night here and there for another month then it passed. I was off a clean which felt good to be free of anything we must take ya know. I however started having even worse PTSD and have had to be back on them and probably will for life.

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I am 6ft 5 and weigh almost 280 so not like your a sissy or anything if you need the meds like I do take it, but if you don't by all means try your best to not take these drugs. Just someone who really cares. I am new here and best wishes to each of you

Votes: +1
chuck1957 28 Sep 2017

Shady; I am going to give you the formula on how the drug life works I put it up once way back but problem with narcotics is they continue to change the 1/2 lives which everything comes off of it the half-life here you go this is how crazy they have the 1/2 life from 18 to 50 hours. good luck. This is the correct formula to find the right answer. BUT NOW THE 1/2 LIFE HAS CHANGED IT CAN BE BETWEEN 18 HOURS UP TO 50 HOURS AND IF THIS IS A BLOOD TEXT ALWAYS GO WITH THE HIGHEST REALLY ANY KIND OF TEST. IT IS FUNNY THERE ARE SO MANY ANSWERS BUT IT IS HARD TO EXPLAIN BUT IT IS OUT OF YOUR PEE, AND BLOOD BUT YOU CAN STILL HAVE WITHDRAWALS FOR MONTHS AFTER LONG TERM USE. IF REALLY IN DOUGHT CALL THE PHARMACIST AT THE STORE YOU GET IT AND ID YOURSELF AND MOST WELL BE GLAD TO HELP YOU.

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CHUCK1957 OK PEOPLE THE EASIEST WAY TO FIGURE THIS OUT IS TAKE THE HALFLIFE OF ANY MEDICATION MULTIPLY BY 5 ALL MEDS HAVE 5 1/2 LIFES TO THEM WHEN YOU HAVE THE TOTAL THAT TOTAL IS THE HOURS IT IS IN YOUR SYSTEM = THAT BY 24 HOURS IN THE DAY AND YOU GOT YOUR ANSWER TRY IT HERE IS 18 HOURS X 5 = 90 HOURS = by 24 hours. and you have. 3.75 days and it is best to buffer this so I would tell you 5 days to be safe. then if you use the 50 hours one 5 x would be 250 hours = by 24 hours is 10.416 hours so give it a bit of buffer to be safe you have 12 to 14 days for people that take high dose's good luck and don't let anyone tell you to drink vinegar or take a magic pill that will make it not show the labs are continuing to change all the times. ok last time I am going to help with this answer you can see why the errors can happen there is no way on gods green earth when you need the 1/2 life of a medication like this that it can vary from 18 to 50 hours. and people lean to the high side always and remember anyone that is trying to come off of this the hours help that is the worst period but even after those you are going to have withdrawals it won't show in a urine or blood test but when you have taken it for 2 years to 20 years this is built up in your muscles liver you name it so you are going to have withdrawals. trust me been there. chuck1957

January233 25 Jan 2018

I also have military PTSD (non combat) female 72 years old. Why Fancy Vanderbilt doctor prescribed as the Clonazepam three times daily however became a zombie I tapered to 1.50 mg. Unable to taper off tried dozen times according to beers criteria anyone over 65 should not be on a benzo, my opinion is if you cannot get off the benzo and it is helping you it’s not gonna hurt that much even beers criteria suggest 1 mg

Drfeelgood 007 11 Sep 2017

1 day

Votes: +0
JediLink 3 Oct 2019

Well i recommend that you don't use clonazepam unless you're prescribed the medication. It can stay in your system for longer then 120 hours.

Zacconway 9 June 2017

The half life of klonopin is 30-40 hours and it takes 5 half lives to be eliminated from your system. Multiply 40x5=200. 200/24= 8.333. So the correct answer to your question would be it takes at least 8-10 days for it to be out of your system. It's a benzo with a longer half life like Valium and Librium.

Votes: +1
chuck1957 28 Sep 2017

This is the correct formula to find the right answer. BUT NOW THE 1/2 LIFE HAS CHANGED IT CAN BE BETWEEN 18 HOURS UP TO 50 HOURS AND IF THIS IS A BLOOD TEXT ALWAYS GO WITH THE HIGHEST REALLY ANY KIND OF TEST. IT IS FUNNY THERE ARE SO MANY ANSWERS BUT IT IS HARD TO EXPLAIN BUT IT IS OUT OF YOUR PEE, AND BLOOD BUT YOU CAN STILL HAVE WITHDRAWALS FOR MONTHS AFTER LONG TERM USE. IF REALLY IN DOUGHT CALL THE PHARMACIST AT THE STORE YOU GET IT AND ID YOURSELF AND MOST WELL BE GLAD TO HELP YOU. CHUCK1957 OK PEOPLE THE EASIES WAY TO FIGURE THIS OUT IS TAKE THE HALFLIFE OF ANY MEDICATION MULTIPLY BY 5 ALL MEDS HAVE 5 1/2 LIFES TO THEM WHEN YOU HAVE THE TOTAL THAT TOTAL IS THE HOURS IT IS IN YOUR SYSTEM = THAT BY 24 HOURS IN THE DAY AND YOU GOT YOUR ANSWER TRY IT HERE IS 18 HOURS X 5 = 90 HOURS = by 24 hours. and you have. 3.75 days and it is best to buffer this so I would tell you 5 days to be safe.

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then if you use the 50 hours one 5 x would be 250 hours = by 24 hours is 10.416 hours so give it a bit of buffer to be safe you have 12 to 14 days for people that take high dose's good luck and don't let anyone tell you to drink vinegar or take a magic pill that will make it not show the labs are continuing to change all the times.

knedwardspj 8 May 2017

I don't know the answer, this is my question.

Votes: +0
doubleAA88 10 March 2017

I took benzos for weeks but drank so much beer and fluids that when I went to rehab I didn't even drop for benzos. Everybody metabolizes differently.

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Kellymac 22 Dec 2016

35-55 hours

Votes: +1
webby67 19 Aug 2016

I read this thread with suspicion. If you have been prescribed Klonopin, then concerns make no sense, UNLESS whether employment testing, parole testing, or otherwise medical testing. People asking this question this way overtly express a concern about detection times -- clearly allied to an illicit motive. I am prescribed klonopin, freely divulge this in any relevant testing scenario, and am free to not worry. A legitimate reason to inquire about half life is reasonable concern about timing, accumulation, and avoiding habituation.

Votes: +4
Cynthia509 1 Sep 2016

I don't think people are asking for some moral answer. So just answer the question and go find a forum where people really care about your judgment.
Take your own inventory.

yscootery 18 May 2017

There are some people who are researching this for other reasons. Some of us have been prescribed it, been taking it for years but lost insurance in a nasty divorce and can't afford a doctor's visit to get scripts renewed at the moment and wonder how long the weird sensations will last. Not all of us have nefarious reasons.

harlis088 23 June 2016

it was in my urine after i hadnt taken any for 3 weeks i was just tested and was surprised it was still in my urine

Votes: +0
Bac1022 4 May 2016

I take Klonopin randomly for headaches. It seems it's the only medicine that knocks out a migraine for me. I don't take Klonopin every day but I've taken 1mg this past Saturday, Sunday, and Tuesday. I have a doctors apt next week for blood work (not sure what the blood work is for) and I'm wondering if the Klonopin will show up in my system if I don't take another one until my apt. Does anyone know how long the medicine stays in your blood stream if you do not take it on a regular basis?

Votes: +0
Lux8 2 May 2016

I have the same question, and any advice for the interim? What if you don't wean off?

I know it's an old thread but how're doing off of it ReitaErin?
Sorry if this is in the incorrect section. I am new here.

Votes: +0
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