Will the Decongestant Entex LA Test Positive for Amphetamines?

Published July 23, 2010

Question by Loris: Will the decongestant Entex LA test positive for amphetamines?
The generic name is Guaifenesin/PhenylephrineHC Tablets 600-30mg

Best answer:

Answer by voss1241
It might b/c the – Phenylephrine Hydrochloride is chemically related to epinephrine and ephedrine. It’s always good to tell them what meds you are taking that way they can distinguish between them.

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