 [ Symptoms ] how are hemorrhagic fever viruses transmitted [ Disease ] oxycontin is an opiate derived from the opium plant morphine is an opiate as well the test that you took may not be sensitive enough to distinguish between these two opioid compounds i have read in other sites that these 2 medications have the same properties oxy often shows up as morphine i am very lucky that my dr told me that the test that they are made to do in the dr office are often incorrect if my dr is knows the patient well he will not dismiss someone based on the urine test these often show up as other drugs good luck