Diazepam / Methocarbamol False Positive For Methamphetamine (Top voted first)
UpdatedHi, 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?
2 Replies
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.
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.
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