Ms Contin does show on a urine drug test. It may show up under opiates, and may test positive for Dulaudids or Hydro Morphine. Now this is a big deal when it comes to a drug test. If you are taking Ms Contin for severe pain or chronic pain, you need to tell the person who is drug testing you so that you are not accused of something you are doing legally under a doctor prescription. You may need to provide your doctors information and your valid prescription as proof.