Lorazepam False Positive Drug Test?

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I take 1mg of Lorazepam AS NEEDED for anxiety. I was rushed to the hospital and while there they did a urine drug test that showed up negative for Lorazepam (or any benzo for that matter). I took a Lorazepam the morning before. Since it showed up negative, I have been discharged as a patient due to noncompliance. How is that even possible, much less fair? The doctor will not change his mind on this.

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I am experiencing the same thing but with my prescribed clozapine not showing up at my methadone program the lab must be doing a cheap test where it's not showing up I've been on it for 4 years

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Are you getting saliva mouth swab tests at your clinic? I do know that my clinic, although it does test for benzos, many ppl taking klonopin (clonazepam) prescribed or not, do not ever come up testing positive for benzos. I've been told this is because in order for klonopin to trigger a positive, it must be taken in excessively high amounts with likely chronic use to make it easier to have a built up level. Where as xanax, for instance, does not need to be taken in large quantities at all for it to trigger a positive benzo result. This is actually how my clinic identifies ppl who are abusing their prescribed klonopin and or taking an unprescribed one in addition to their klonopin. I would say that this probably happens due to metabolite structure and klonopin may be the 'one of these that is not like the others' in the benzo family. Klonopin flys under the radar of the initial cutoff level of many tests - with saliva testing being the 'easiest' kind to pass because it only detects very recent or chronic use as a general rule for most of the drugs it tests for. I would dose every single day during my pregnancy and my swabs would come back without methadone on several occasions because I was throwing up my dose frequently due to morning sickness. I did not lose my dose every day, however, and with the long half life of methadone, we know there had to be some in my system but this happening attests to what the swabs purpose for detection is: recent, (within 24 -48 hours) use and also chronic/ heavy use

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