15 years + as pain management patient, never failed a urinalysis test. I take Norco 10/325 s( 3 times daily) and Fentanyl 50mcg duragesic patches every 72hours, I take a number of OTC medicines and some benzo s and ampethet s( Adderall), urinalysis showed positive for oxycodone. This could cause me to lose everything, family, job, wife, children, freedom.......How could this have happened? Asking for test to be done again tomorrow, and they are allowing me to take it. I am over 50 years old, I am not going to drink gnc stuff or gold bond , I will watch them with my specimen, but could current meds cause this?