I been taking 60 mg of morphine twice a day for over a year two months ago he switched me to oxycotins 20 mg and I keep getting the chitters like withdraw but he told me the pills were equal doses and he gave me a urine test and he said morphine showed up in my urine and there is no way because im not a pill popper and I take my meds as directed no extra or nothing even on my worst days I suffer with it so how could morphine show in my system after 2 months or is it a blotched test
Certainly the morphine wouldn't be in the system after 2 weeks. The metabolites of each are quite different. BUT they share some common structure to be able to work the same way and for this reason simple tests can show one as the other. Better tests would distinguish between the two.