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False Positives ForumThis forum is intended to help those who Do NOT Abuse Drugs. We do NOT support the illegal use of any substance. If you have experience with false positives, share your experience. What would you tell someone about drug testing and false positives? Please remember that this forum is not for medical or legal advice.
Positive for oxycodone
My boyfriend recently took a drug test for his work and it showed up positive for oxycodone. We knew he had been taking hydrodone and then lortab following an outpatient surgical procedure, so we knew that the test would show up positive for those, but the oxycodone was a surprise. He has NOT taken any and WOULD not due to the nature of his job and the random drug screens. Could either of these 2 drugs, or amoxicillin that he was prescribed, advil, tylenol, and aleve are also OTC drugs he took leading up to and following the procedure, have caused a false positive?
AskDocWeb: To date there are only a few medications that have been documented to sometimes test false positive for oxycodone. They are:
Tested positive for amphetamines
I take 60mg Sudafed EQ and 10mg Claratin EQ and Flonase nasal spray anad tested positive for amphetamines on a UA. COuld this be because of these medications? level on test was around 2500ng
AskDocWeb: Did you use amphetamines?
Unisom Sleep Gels
Will taking unisom sleep gel result in a positive urine test?
AskDocWeb: The active ingredient in Unisom Sleep Gel is Diphenhydramine Hydrochloride, which has been reported to sometimes show up as false positives for benzodiazepines, PCP, and tricyclic antidepressants.
If I touched pcp with my finger can I get a positive drug screen.
AskDocWeb: PCP (Pentachlorophenol) is one of the drugs that can be easily absorbed through the skin and cause systemic poisoning. Cases of acute PCP poisoning included systemic effects of hyperthermia, sweating, fever, weight loss, gastrointestinal disturbance, inflammation of the conjunctiva, corneal opacity, tachycardia, tachopnoea, respiratory distress and hepatic enlargement. And yes, it can also give you a positive drug screen.
Over the counter cough medicine
Hi, can a over the counter cough medicine show a false /positve result for methadone? my husband had a urine test and it showed up as methadone in his system he dont take any drugs he was taking cough medicine though.
AskDocWeb: Several sources say that Vicks Formula 44M has shown up as false positives for methadone and/or heroin (References: 1, 14, 26, 29, and 43). Since many cough formulas have common ingredients this may also happen with other couch medicines.
Positive for THC
I have just taken an oral drug test and it came back positive for THC and Marijuana. I do not do drugs of any kind. The only prescriptions that I have are for Premarin and Xanex. I do smoke cigarettes and drink hot lipton tea (two bags per cup) all day long. Will any of these cause the false positives?
AskDocWeb: None of those have been associated with a false positive for THC on urine tests however, there are over 70 other possible causes so additional testing is warranted, preferably by an independent certified laboratory using a GC/MS or LC/MS/MS confirmation test.
I just came back from a drug test for a new job and it came back showing methanphetamine. I don't do drugs. After talking to many people it came down to the poppyseed muffin I ate two days ago. What legal recourse do I have without hiring an attorney?
AskDocWeb: Legal questions should be directed to online Lawyers.
False Positive For Cocaine.
I have been going to A methadone clinic for a year and a half now and I have been clean since then. The other day I took a mouth swab test and it came back positive for cocaine, and I did not do any. I was sick during that time and I was on medication from my doctors. I was on the Z-pact antibiotics and a Z-pact for steroids. I am also taking Zoloft, Buspirone, Triamterene, Levothyroxine, Lasix, And abutrol for asthma. Can any of these cause a false positive.
AskDocWeb: Antibiotics in the Penicillin family (such as Amoxicillin) have been reported to cause false positives for cocaine so that is a possibility. Your other medications have not been associated with false positives for cocaine.
Tested positive for pot
I tested positive for pot in my drug test and don't even smoke it but i do take promethazine when i feel sick along with anvil and ibuprofen. Will this make my test positive?
AskDocWeb: On urine tests, both Ibuprofen (Advil) and Promethazine have shown up as false positive for pot. It does not always occur but if it does then additional testing is needed to show that the result is negative.
I failed my drug test
I took a pre employment drug test and i have never done any drugs at all. I had taken 1 bayer aspirin and 1 ibuprofen two days prior to the test. I failed my drug test could it have been for the ibuprofen? It was 400 mg.....hopefully they conduct a confirmation test because i am totally not a drug addict of any kind.
I had a false poss for k-2 and have only taken lamotrigeine 50 mg and strattera 60 mg and tremidal how could I test poss for something I haven't used in 3 months on a Ua or been around anyone who has and will hair STAT prove I didn't.
AskDocWeb: The K-2 tests are relatively new and we have yet to find any data on what might cause a false positive on those tests. If readers can help out with this, please do so.
Daughter tested positive for siboxin in urine she is on lortas 5mg, pancrease meds, clonipine 3 x a day she takes nyquil and tylonal pm for bed and pain vitamin d prescription strength, and mycaliston for osterporis she had sex before her exam and boyfriend is on siboxin could this cause the false positive?
AskDocWeb: Do you mean Suboxone? This medication is used to treat narcotic (opioid) dependence. The standard urine drug tests for drugs of abuse do not detect it, because the Buprenorphine in the Suboxone is a synthetic opiate. There is a specific test for Suboxone but we haven't found any substance that might cause a false positive on that test.
What to take for a cold
I am trying to keep from a positive on my DHS UA's. Any one know what I can take for my cold to keep away that false positive?
Can taking 4 way fast acting nasal decongestant spray, the active ingredient is phenylephrine hydrochloride cause a positive drug test for methylhexaneamine?
AskDocWeb: The 4-Way Nasal Spray is known to have caused false positives on urine tests for amphetamines and morphine but not for methylhexaneamine.
Methylhexaneamine (DMAA) was trademarked by the drug giant Eli Lilly to be used as a nasal decongestant back in the early 70s. Although its effects is similar to that produced by phenylephrine hydrochloride, it is not known to be cross-reactive.
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