When I take sinus meds with Pseudoephedrine Hydrochloride 30mg. My drug tests at work show up as a positive for Amphetamines. I can't get them to believe it's from over the counter sinus medicines. Do you have any suggestions that might help me? I'm going to lose my job if I can't come up with some type of documentation. Could you please E-mail me with some help! Thank you, Frank Amolsch aka ******