My spouse failed a probation drug test of for amphetamines. The lab results came back and said the same thing. He was in bed sick the entire week before, took several medications. one included 'Assured non-aspirin cold formula", including both the daytime and nighttime pills. The ingredients are acetaminophen 325mg, dextromethorphan HBr 10 mg, Phenylephrine HCl 5 mg, and Chlorpheniramine maleate 2 mg. can any of these drugs be the reason he tested positive? If so, can someone direct me to a legit website where i can print out the facts stating that it Could cause the false positive? I have to print out facts from (again) a legit website to show his Probation Officer.