What opiates test positive on urine tests?

Prescription painkillers such as hydrocodone, oxycodone, and codeine are opiates and are readily detected using urine tests for opiates. In general, prescription painkillers such as the ones given for severe Back pain are opiates. There are a large variety of these pills and they are sold under a large number of names. In general, a positive urine test for opiates would not be a problem on a typical (e.g. pre-employment) drug screen as long as you are able to provide proof that you're legitimately prescribed the medicine by your doctor.