Can DXM show up as a false positive for benzodiazepine?

[DetroitFire]

Wasn't exactly sure where to put this. I took a drug test the yesterday and the day before the test I took mucinex DM (60mg of DXM) legitimately for my chest congestion. The results showed trace amounts of benzodiazepine. Has anyone heard of this happening before?

[Richard_Cranium]

I have never experimented with this drug, but from extensive general d-testing research I believe their should be no false postive for benzos from dxm,

I do know of people who have had to, for one reason or another, be taking some mucinex and similar otc meds and had tests come up with no confusion or false positives.

Hope this helps.

[shoybs]

Strange that it would show up as benzodiazepines. I've only ever heard of DXM very rarely causing a false positive for PCP.

[JuStOnEmOrE?]

This thread should have been posted over in Drug Testing. Yeah... it has it's own board. funny how that works, isnt it?

Anyways... no. It's not possiblt for DXM to cause a false positive. Either the test was faulty. Or... you took benzos at some point in time. Benzis are really screwy when it comes to drug test. sometimes they show up forever later... or sometimes they dont show up at all.

[Thanat0s]

DXM popped me dirty for 'done supposedly.
clinic wouldnt dose me despite obvious narcotic withdrawal and admitted iv heroin use.
"well! we just cant dose you until youre ready to get honest with us, and with yourself, about the methadone."


they wouldnt even consider that i took a gram of dxm the day before to escape w/d,
they didnt know and didnt care that its a fucking opiod.

my mom took me, and so we left.
my brilliantly awesome co-dependent mother then talked me into letting her take me to cop dope,
even put the 90 for a 'big one' in my hand.

5 DAYS LATER wound up on sub.


DXM and drug tests has cause false positive for opiods, and/or PCP/ket
and id be not surprised to hear of more.

maybe ill ask thedextroverse.org.

[borohydride]

my mom took me, and so we left.
my brilliantly awesome co-dependent mother then talked me into letting her take me to cop dope,
even put the 90 for a 'big one' in my hand.

5 DAYS LATER wound up on sub.

Your mother sounds like a great lady.

[Tylercwxzy]

Sounds just like my mom man, don't sweat it. Had the same thing happen, took dxm for several days before going in to sub doc, tested positive for methadone. Used that to my advantage though because I had no other opies in me for several days so they didn't show up. Oh edit: to the OP, I've taken valium and Kpins weeks before a test and popped positive.

[Benz]

I've nrver heard of DXM causing a false positive for benzos but it's chemical backbone may cause it's metabolites to cause false opi positives.

Those instant urinalysis tests very commonly show false positives for PCP. I was in a treatment unit once that didn't even pay attention to that panel because so many things caused a positive. The list was endless, ibuprofen, DXM, diphenhydramine & countless prescribed meds.



Benz

[wropp]

Yeah DXM can cause false positives for different kinds of shit on different kinds of tests,
you didn't take a benzo, you took dxm, right? what was this test for if you don't mind me being so bold,
maybe you can fill the gaps and we all learn a thing or two?
Yeah?

[jacky]

from memory,
I have heard reports of DXM causing false positives for PCP, opiates, (amphetamines if there is a pseudo ephedrine component in a DXM containing product)

I have not heard of people testing + for benzo's,

but I really wouldnt be suprised by many false positives,
there are so many OTC products now that can test you false positive,
and there are so many companies providing testing services,
I think that mistakes and false positives are the main detriment to their existance.....they foul more lives than they prolly help.

[antigonemuse]

Benzos are so dirty... they stick around forever...

I popped positive for benzos at the clinic, which was flagged, and as a result lost all my take homes. I was scripted kpins... i brought my script in every month. the clinic was totally aware. BUT, after months of being on the kpins, then out of nowhere i popped positive for benzos on a oral swab (given monthly at this time)... Here is what I learned, that kpins typically will not pop on a oral swab. zannies do. I had taken a zannie (just one) about 3 weeks prior to this test. When the positive came back, I was refused my dose until i got a blood test specific for zanax and one specific to kpins. Those results came back showing something like .04 (what ever increment they use) of zanax in my blood. They accused me of not being responsible with medications, and took all my take home on that pretense. They had me on weekly swabs for two years... and even after not taking another drug illicitly for over a year, would not give me my take home back. I fought with them for over two years to get them back.They made me get blood tests, MRI's, psych reports.... Every request was denied, with another hoop to jump through before I could put in for another bottle request. I even asked my shrink to take me off the kpins. But i finally accepted that they just were not willing to take the risk on me cause of my benzo script. It was one of the deciding factors in my taper. It made me realize how dependent I was on the methadone, and makes me fight hard as fuck to get off. Im telling ya, just having to deal with a meth clinic is enough to keep someone off drugs for the rest of their lives in fear of having that lack of control. In retrospect, I understand. But still get mad when I see so many clients come in fucked out of their gorge with take home bottles for weeks. I was given bottles with dirty toxes for coke, dope... never had them blink an eye.but they are so scared of the benzo / meth mixture.

sorry to get off subject.

so, anyhow, I researched false positives a lot after this. While no drug test is perfect, their have a high percentage accurate readings. Even if they dont show positives for some stuff you are taking... other drugs like DXM, arent likely to show a false positive. I think the most common false positive i found out about was psuedophidrine for methamphidimines.

[SuperJunky]

I am scripted Kpins, along with a lot of other meds, morphine, gabapentin, mirtazapine, propranolol, zolpiderm etc. My doctor has to drug test me, to prove I'm not diverting, and I have come up positive for a few benzos that I can't account for, and I take DXM regularly. I take diazepam that I'm not rx'd and no positive there, despite telling my doctor I take them. He generally doesn't care personally about the unexplainable positives, but he is feeling more and more pressure from his office, and is growing more fearful of the DEA. Oxazepam and one another I can't think of the other benzo/metabolite if my ass depended on it. He just rights it off officially as "A Metabolic False Positive," figuring other medications could be interacting to cause the false positive with my clonazepam and admitted diazepam and occasional lorazepam use, but it doesn't add up on a GC/MS drug test that cost me near a grand (he knows no one will ever see a dime from me, I don't mind giving urine's so he sends them in just to screw his office out of the money. I haven't tested positive for a narcotic he didn't prescribe in the three years he been prescribing).

I have never heard of DXM causing anything but PCP and occasionally opiates causing false positives, but it depends on the type of test. Maybe it plays an actual metabolic roll of some sort if mixed with benzos?

[simfromstoke]

ive had DXM give me a positive for opiates(non-specific though) on a five panel test

[borohydride]

ive had DXM give me a positive for opiates(non-specific though) on a five panel test

It's metabolite, DXO, is the optical isomer of levorphanol - so it really should give a positive to opioids... presuming that the stuff isn't smart enough to spot isomers... which I doubt.

[simfromstoke]

It's metabolite, DXO, is the optical isomer of levorphanol - so it really should give a positive to opioids... presuming that the stuff isn't smart enough to spot isomers... which I doubt.

i think my doc knew i was being genuine when i told him of my sore-throat then proceeded to quickly recite "dextromethORPHAN, duh oh yeah...I really wasnt thinking doc, I really am sorry" he saw the sincerity in my face as it sank into place "orphan" / morphine / opioid class of medicines..
I was in a bit of a state in the chemists what with my genuine man-flu and didnt know about DXM at the time and stupidly thought dex = speed "yes please! i'll take that one.."

oh and it was just a standard five panel dip test. it gave a resonse as fast as litmus paper