Propylhexedrine and test for amphetamine

Discussion in 'Drug Testing' started by Myzel, Jan 27, 2007.

  1. Myzel

    Myzel Silver Member

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    Curious do any swims think that Propylhexedrine could show up as a positive on a standard 5 panel test? My has looked and compared the structures of each compound and doesn't think so but could be wrong. Hope You can shed some educated light on this .
     
  2. Isochrist

    Isochrist Newbie

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    In the past, I used some propylhexadrine while on probation. I was drug tested 3 days later and was positive for methamphetamine.

    The urine sample was subsequently sent to a GC/MS (after a 30$ fee and some hell-raising), and then came back negative for meth.

    So yes, propylhexadrine will cause a false positive on an EMIT test, but not on a GC/MS.
     
  3. Myzel

    Myzel Silver Member

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    OK much thanks. That is the same situation I was worried about .. Swim also figured so and I am not the type to be the first to test it out. Mainly because I would probably go away for a long while and it's just not worth it
     
  4. Isochrist

    Isochrist Newbie

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    Glad I could be of help to you.

    I went through the same thing when looking at the structure of propylhexadrine. SWIM figured because it was a cyclohexyl group instead of a phenyl group that it would of been broken down into something that wouldn't show up positive for meth. Apparantly that's not the case.

    Does anyone know exactly what propylhexadrine / amphetamine get metabolized to?
     
  5. Myzel

    Myzel Silver Member

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    That was another reason also I was so interested in that because if You looks at the structures and they look the same but the cyclohexyl ring I would think make a big difference. Just like the alpha and the beta on the hydroxy makes such a big difference.. Also think about ephedrine when it breaks down it does not cause positive test.
     
  6. Isochrist

    Isochrist Newbie

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    Actually I was under the impression that ephedrine could cause a false positive.
     
  7. Myzel

    Myzel Silver Member

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    Maybe, but I has never failed a drug test after consuming ephedrine. Swim thinks the key word here is "could" . Swim thinks that with the new test they have now that ephedrine will not cause a false positive...Also that is why is surprises swim that propylhexadrine causes false positives. But I am not going to take the chance at least with propylhexadrine
     
  8. Isochrist

    Isochrist Newbie

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    Yeah, I would imagine if I had used the propylhexadrine according to the directions, that it most likely wouldn't have caused the false positive.