Expert: Barbara Judge - 7/17/2007

Question
I am testing positive to Sympathomimetic Amines (Amphetamine Class) on my drug screens. I am taking Tenormin, Ativan, Felodopine, Hydrochlorthiazid, Fenofibrate, Esomeprazole, Metformin and Glickazide. I suspect the Tenormin. Please advise if any of these medications could cause this positive result. Thanks.

Answer
    None of those are known to cause a positive screen for amphetamines.  Tenormin is considered a masking agent, however.  If you did not completely list all your medications on the screening form you could have failed a drug test because of the use of Tenormin without adequate documentation.  

Thanks

Barb Judge