What Drugs Will Show A False Positive For Phentermine

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I am prescribed lamotrigine, buspirone, lexapro, abilify, diazepam, naproxen, hydrocodone, mehylphenidate, nuvigil and sudogest. My dr did a urine test and sent it off to the lab who says it tested positive for phentermine. I ONLY take prescription meds and phentermine is not one of them so why and how could lab results say this???

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1

You take methylphenidate correct well thats actually generic for Ritalin prescribed for ADD/ADHD both drugs are classifed as a amphetamine so there you go buddy

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2

Help, please. I had a dui a year ago and after a urine drug test they say it came back positive for phentermine which I had never even heard of the diet pill or ever taken it. Now they say it is a violation of my probation. The molecular makeup is similar to some ingredients in cold meds. Does anyone know about this? Can cold medication cause this?

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