My pain management doctor recently gave me a urine drug test and i tested positive for opioids (morphine) to be exact. My prescription from him for the past 30 days was supposed to be 1 10mg percocet 4x a day. Unfortunately I take ALOT more than that. I was taking throughout that month a combination of oxycontin 60mg and oxycodone 30mg. Is this the reason he said I tested positive for the morphine and opioids? I thought that because I was supposed to be taking 4 10mg percs a day that I would have been fine taking his drug test. Is it because of the amount of oxycodone I had taken throughout the entire month?
Please help?
- Asked
- 9 Apr 2011 by Wuteva34
- Updated
- 10 Apr 2011
- Topics
- morphine, drug test, opioid
Added 9 Apr 2011:
He said that I should NOT have tested positive for an opioid morphine.
Responses (1)
Hey Wuteva,
Depending on the sensitivity of the urine test, you should have tested positive for the oxycodone from the percocet but not positive for morphine. Where are you getting the Oxycontin? Are you sure you are getting what you think you are? Oxycodone is the generic form of Oxycontin so they are the same. The Percocet is oxycodone and acetominophen which contains no morphine. All these meds, the oxycodone and the morphine, are opoids.
I would be careful taking the prescribed amount of Percocet with the additional Oxycontin. The additional oxycodone in the form of Oxycontin is a bit much oxycodone for one day.
I hope I have read your post correctly and have answered your question,
Laurie

Further Information
- Morphine Information for Consumers
- Morphine Information for Healthcare Professionals (includes dosage details)
- Side Effects of Morphine (detailed)
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Thank you for your response, upon further reading, I learned 2 things. First is that oxycontin will test positive for morphine and second is that people taking doses of oxycodone higher than 45mg a day may test positive for morphine. The reason is that oxymorohone is a minor metabolite of oxycodone. So the higher your daily dose of oxycodone, the higher the amount of oxymorohone that will show up in urine. If your pain management doctor is unaware of this, patients can easily be falsely accused of taking unprescribed morphine along with their prescribed oxycontin or oxycodone.
Thanks for the information and hope that you get the confusion cleareded up with your doctor.