Hi, I have been taking lorzapam, paxil, and oxycodone for 2years, and today I went in for my refills, and doctor did a random urine drug screen. It came back showing opiates in my system and my doctor discharged me and said I had to be using illegal drugs. The only think I take is the 3 meds I listed. Have never used anything illegal but pot and that s been some 20 years ago, so would one of these 3 meds show up as an opiate. I was very hurt that he even thought I had done any illegal drugs. Are there anything in my prescribed meds show up as an opiate??