False Positive For Cocaine On Hair And Mouth Swab Test, On Suboxone, Liver Disease, And Neuropathy

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can gabepentin, keflex, suboxone, and xanax cause false positives for cocaine on oral swabs or hair tests?

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David Says:

With the ever increasingly large number of false positive reports I've seen, I certainly wouldn't be surprised if any one of those medications came up positive for cocaine; and I mean that seriously. On the cheaper, less reliable tests, it seems anything is possible.

Now there is specific testing, such as that done by a gas chromatograph mass spectrometer, which has the ability to distinguish the exact substance in question. This type of testing is not initially performed because of cost, but, is often a follow-up option for those facing serious consequences such as a job loss, jail time, etc. This may be something you'd want to look into.

If you're able to I would also ask your doctor if additional testing may be done on the original sample so that a second sample may be taken. Unfortunately, the outcome of it may be different or similar due their inconsistency; but a different outcome would really show how terrible their accuracy is.

I hope this helps!

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Zman7676 Says:

I have taken a mouthswab test and it came back positive for buprenorphine. I have not taken anything of the sort, I actually had to ask my P.O. what it was and he really didn't know. I take Cymbalta and Elavil for anti-depressants every day and some weight loss supplements. please help my reputation and life are on the line

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amy Says:

My girlfriend is almost going to loose her children because she keeps getting a false positive for cocaine from hair tests. The only medication she takes is suboxone. How do we find out more on this to help her?????

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juan Says:
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I have cirrosis of the liver and I'm on pain management. is suboxone bad for my liver since I have ccirrhosis

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Mike Says:
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I recently had a positive for Meth and a confirmed second test at the hospital I haven't used in nearly 2yrs and I'm being looked at like I'm lying which upsets me because I have no problem with being honest about my use. And I spent a long time in inpatient treatment and have been clean since release. I'm on numerous medications gabapentin lantus humulin N. Prednisone and hydrocodone and promethazine and clindamycin. Could it be possible for a positive from combination of tbese

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whatafool Says:

Swab test on 17th been clean 10 years got horrible news and used cocaine, it was cut a whole lot . I am so disgusted with myself. I am in pain management clinic. I take oxycodone 30, oxycotin 30 er, xanax 5 mg. I am so worried I have chronic pain, arthritis, degenerative disk back. I feel like such a fool. will this show up in a very good saliva test?

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gee Says:
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I got serious mouth ulcers, used oral lidocaine and tested positive for cocaine on an oral mouth swab. I do take neurontin and ativan. Could this have caused the positive result?

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Amber Says:
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I tested positive in urine then I paid for hair follical BC I just knew it would be neg..well it too was positive for cocaine..I have not taken any since the end of september..I'm on keeflex, Gabapentin Lortab and lamotrigine along with some herbal medications. Can you please tell me how this was possible that I showed up positive in a hair follicle?

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Mark Says:

gas chromatography doesn't 100% determine substance, actually it wont show the ingested substance, but what GC does is show the metabolites of said substance, and the doctor(if they are good) can tell which substance was taken.

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RaeBae Says:
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I know this thread is ancient and I hope the person in question was able to get everything straightened out, but for others' reference I did want to add that several months ago, at my suboxone clinic, I was given a swab test and a urine test at the same time. The urine test came back negative-as it should have-but the swab showed positive results for marijuana and cocaine ;[ had it been only MJ I might've understood, as I do live with people who smoke regularly and often, but the cocaine result was absolutely, without a doubt, a false positive, which leads me to believe the MJ was as well. I refused to accept that result, and although my therapist insisted on several occasions that nothing causes false positives for cocaine and that the labs don't make mistakes (I felt as though she were insulting my intelligence on that one, no drug screen is 100% accurate and she knows I know better than to think it is), there was no further action taken against me. So if you get a result on a drug screen that you disagree with (for whatever reason), DO NOT be afraid to fight it! You have every right to contest a drug screen result. Although if you know your false positive is not so false, be advised that they may potentially-particularly for court-related and substance misuse clinic screens-retest your specimen to confirm, so just keep that in mind when trying to save your ass ;) it can be worth the risk though! If you don't agree with a drug test result, speak up-you have rights too!

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RaeBae Says:
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Suboxone can be hard on the liver. Doctors will order blood tests to check your liver function and decide whether you're in good shape to take it based upon the results. Good luck, and take care :)

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Krystyna Says:
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Re: amy (# 3)

Same thing happening here, right when we're right about to have him back. We have years of sobriety and yet they just told us we’re dirty for cocaine. We are on antibiotics but still I took 2 tests in the same day and got two diff results. F*** CPS.

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BMS Says:
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Re: whatafool (# 6)

Only if you did a lot and within 48 hours of the test or less. My humble opinion

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