Yes, your pain meds contract works a few ways. Your test should be positive for the opiates you are currently prescribed. If you don’t show the prescribed opiate at an acceptable and expected level (a level that indicates you’ve been taking your opiate as prescribed), your pain doc will suspect that you are selling your drugs, or that you’re taking too many during the early days/weeks of your 30-day prescription.
This (taking too many causing you to run out of your pills early) is also not great, because pain docs will often opt to do surprise pill counts, and either ask you to come to the office to see how many opiates you’ve taken at this point in the month, or, if you’re mostly doing telemedicine appointments, your doc will ask you to get your pill bottle and count out the number of pills you have left at this point in the month, via FaceTime or Zoom.
Your test should also be negative for any opiates that are not being prescribed by your pain doc. The only acceptable reason you can test positive for an opiate that your pain doc didn’t prescribe is if you were given the drug while in the hospital, or given during or after an outpatient surgery/procedure, either at a hospital, ambulatory surgery center, a clinic where procedures requiring post op anesthesia is given, or at an oral surgeon’s office.
And you will be in real trouble with your pain doc if you’ve filled a script for an opiate that was prescribed by another doctor.