Diazepam / Methocarbamol False Positive For Methamphetamine
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Hi, I am in Probation and going to iop. I had my first drug test and I am taking diazepam from my Dr. So it showed up benzo and it said I failed for methamphetamine. There is no way that I could fail since I haven't done it. I take methocarbamol and they said it can show positive because it has similar ingredients as methamphetamine. Has anyone experience this before?
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Methocarbamol has been shown to occasionally give false positives for AMPHETAMINES as some of Methocarbamols "ring structures"are similar to that of certain Amphetamines. I always let my doc know I've taken Robaxacet prior to drug screen and generally they will order a more specific urine analysis.
I've been taking robaxin for years and there are no methamphetamine properties in that drug. It's not a barbiturate or opiate. You should be fine. To be safe, give yourself 12 hrs prior to testing just in case.
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