False negative drug screen

[colleen1212]

I am taking a low dose of Percocet 5-325 3x's a day, for chronic back and neck pain from a MVA. The problem is that even though I take it the way I should, I have had 2 negative drug screens.  What can cause this. Please help.

        colleen1212

[Lilli77]

YES MINE WAS LABCORP TOO. FOR OXYCODONE..:(

[MRSTL14]

Well 250 mg of Oxycontin is quite a bit, I mean that would have to be 80 mg 3x daily or 60 mgs 4x daily which both only come out to 240 mg. Maybe you rounded up but my point is you would have to have a certain amount in your urine if you take them say every 8 hours or every 6 hours depending on what strength you take. I guess it would have to be consistent levels in your urine if taking as prescribed. I also have been on pain management for over 3 years in which I take Oxycontin and Norco that totals 120 mgs a day of narcotics.

I don't get why I see some reviews on here saying they don't take them when they have to drive, because If taken daily for a extended period then usually they shouldn't effect your ability to drive, as you are used to them and the euphoria they may have given in the beginning would reside over time. I've never felt drugged up where I couldn't drive, they help with pain and that's it.  

I know everyone is different but my point of this long reply is the "DR" is maybe thinking the same thing. He may think you are taking half of what you are prescribed if you simply miss a dose or won't take anything when you have to drive, which he probably thinks is more than just when you go to see him. Just an outside neutral view of course.

[Electrksparky]

I have been taking pain meds since 1988, was in a car accident and crushed both feet. Been on morphine patches, Percocet, u name it. In 2001 I had a morphine pump installed, my pain was managed very well only took percocets as needed for break through pain. Last year my pump failed and need replaced then I got an infection they had to remove the pump. I was told to wait a year and I could have it back in the mean time they gave me oral morphine and diladid. I take them around the clock, I was asked to take a drug test for the first time in over 20 year. Of course I said I had nothing to hide I was taking my meds, well of course it came back negative took another one same thing. Now my dr won't give me back my pump that helped me out very good. Dr said I wasn't taking my meds so he wasn't putting a new pump in me, why would I ask for the pump if I was selling my meds? When they put the new pump in me and turned it on it would kill me if I wasn't taking the meds. Why would I won't to kill myself? Going through the withdrawals is going to make someone want to kill them self. You have people like us that are glad to take the test to show we have nothing to hide and then there are those in the clinics that him and haul sneak around and have other people take the test for them.  What do we do???

[ewsapp3]

I'm dealing w/the same issue right now. I've been on opiate meds for yrs now for sickle cell.  Never really had a problem w/getting my meds until 03/27/2014 (thursday).  My VA doctor sent me to have a urine/drug test, and to my surprise it somehow came bake negative.  I told the nurse that y wife sees me take my percocet (and other meds) everyday! My VA doctor said that she didn't feel comfortable prescribing my oxycodone 5mg/325mg (generic percocet) anymore because of the results of my test.  My wife recommended to the nurse/doctor that they do a blood test instead of a urine test.  And so, I did a blood test on 03/28/2014 (friday), and i'll get the results today/monday (03/31/2014).  I hate being faslely accused too, and so, I understand how each of you feel.  We all need to discuss this matter w/our congresssional leaders (congressmen/women & senators).  

[Tamara62]

I just wanted to let you guys know that I had a gastric bypass in 2003 and if I have not taken a medication pretty much the same day I take a urine test, it wont show up so I have been told by my primary doctor to have the take a blood test or use the patches on me.  I hope this helps, not sure if any of  you have had a gastric bypass, but this could be one reason.  :)

[beckieblue]

Just read your post....I'm going through the same song and dance from my physicians office as others have noted above. I have been accused of not taking my pain meds from the pain management group I've been going to for 10 years. They claim 3 test have come back neg for the narcotics in my system. Just wondering the outcome of your situation....