What Medications Can Cause A False Positive For Methamphetamine (Page 5) (Top voted first)

Can certain over the counter medications or prescription medications cause a false positive for Methamphetamine in a blood test?

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Usually not a blood test. However, once again...you must get all tests confirmed by either GC/MS or LC/MS/MS. That is the ONLY way to be sure of the compound (drug) of interest is present or not. Good luck.

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hey concerned sister, a false positive is a false positive on a urine test so when it shows up meth and you say it isn't then it's your word against theirs, but there is a such thing as getting down too the nitty gritty, like a blood test, hair test, special urine test, and all those tests can distinguish a false positive from a real positive, so even if the meds your sister is taking has been known too cause false positives it won't do her any good because they can prove beyond the shadow of a doubt that meth was in fact in her system, so even if she dodges a bullet plenty more is coming her way in life she is bound too get hit so my advice too you is get your sister help to get her off meth before it completely destroys her life and the people around her, the only way your sister is gonna walk outta this thing a true winner is if she conquers her meth addiction hope my advice helped best of luck an wishes stay strong:)

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NO The Meth is going to show up when the drug is confirmed. If they check Amphetamines and Methamphetamines, it will show. Phentermin will cause a cross reaction false positive for amphetamine on a card, cup, or EIA analysis. You can't fudge it. Get your Sister off Meth, it is PURE POISON it is a destroyer of everything and everyone it comes in contact with.

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that's great news that you found a new doctor misty, hope things change for the better, and glad I could help:)

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you're best bet ceara is to research everything you have taken whether it's prescription or nonprescription medications, if you haven't did any meth than obviously it's one of the drug's you've mentioned causing you to test positive, and when you find the one that's causing it have a page printed out that tells everything about the drug especially the part where it explains it can cause a false positive

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Also after checking everything you've taken, If your positive you haven't had Any methamphetamine at all... Demand they retest using hair... hair won't lie... it cleared my name.. my dr said all of ppl who were testing pos for cocaine before are now testing pos for methamphetamine.. seen it on news also because it's a lot cheaper to make.. that caused my friend to lose her kids.. she thought she was using coke but mixed with methamphetamine... but if I was you check everything then do hair test... and if any of your meds are causing it make sure you ask them find something else but make sure won't cause same problems.. mine was ranitatine..

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incompetence would shock you I know because I was almost a victim of it, yes that's true what you mentioned is the only way to determine a true negative or positive after I tested positive on a regular urine test as far as they was concerned I was guilty then I took blood it came up negative they said it had time to leave my system an still considered me guilty and of course my blood test was confirmed by all the things you mentioned nope I was still a guilty man in their eye's, I finally had to take a hair test that tested for 5 major drugs including amphetamines aka meth the drug they said I was guilty of my hair test came back completely negative on all 5 it was a quick negative too the lowest shut off you could get on them all not a trace of a drug let alone the drug they accused me of doing, so I did my research found the problem had the info on the OTC I took that caused the false positive had it printed out then walked back in their office along with my negative hair analysis results explained why their test said what it said then it was wam bam thank you mam I walked out a free man I'm no longer on probation, my point is they already got her showing positive it's better too arm yourself with the info explaining what caused the false positive then take a test that confirms all the things you mentioned because you never know who your dealing with when I gave blood I was shocked that wasn't good enough so it's better to be safe than sorry

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Blood testing for drugs is VERY LIMITED in the amount of time it can be detected. The parent drugs do not stay long in the blood, but are metabolized into different molecular structures. OTC can cause many false positives, but not if confirmed properly. I do not recommend doing blood tests for drugs unless it is within a few hours after injection or ingestion. Hair testing was actually invented by a close colleague of mine, and frankly, it is not perfect science with some compounds...THC being the hardest to identify. But Meth would definitely show up. Take care everybody. Don't go down that slippery slope of no return. Sincerely!

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and to give you a better idea of the incompetence I experienced, I offered a blood test from the get go my officer walked out of the room then he came back said go too such an such hospital ask for a urine test and he also said the confirmation things you mentioned he told me to make sure it was confirmed an told me to have the results by morning I said ok so I leaves his office on my way too the hospital he specifically told me to go too on the way my phone was in the dash so I turns it on then realized I had a voicemail so I checked my mail it was my officer who changed his mind from urine to blood I didn't bother calling him back when I gets to the hospital I ask for a blood test told them why I needed it I sat for 3hrs then they called me back drawed blood then I sat in a room another hour the doctor came in told me they can't send my results off cuz he didn't give me a chain of custody I had no idea what she was talking about I was very disappointed cuz I knew time wasn't on my side an I was gonna have to walk into his office in the morning an really look guilty with no results all because he shouldn't have sent me to a hospital in the first place a lab is where he was supposed to send me even the doctor told me that so she gave me proof I showed up did what I was supposed to do they just couldn't send the blood off so next morning I'm in his office I explained then he admitted. to his error sent me to a lab I took a 2nd blood test came up negative the other officer who worked with him said it had enough time to leave my system and the reason I didn't get the blood test on time is because of human error now you see what I'm saying?

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Only on a screening test.

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There are no false positives in blood tests for Meth unless you have taken it. However, the d and l forms of amphetamine are hard to separate at times. Make sure that if you are on Adderal or any other Amphetamine, that you tell them prior to the test, and that they confirm their findings via LC/MS/MS or GC/MS which is the only reliable and certain test.

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Statement of medications is not mandatory. Some states it is illegal to ask, however, if you are positive for anything then an MRO (Medical Review Officer) who is a Medical Doctor will contact you and go over any medications prescribed or over the counter with you and then determine if it is positive of negative. The most likely thing that will show up as a FALSE positive will be Amphetamine, due to all the meds you take that are related in chemical structure. Remember you have the right to insist on a confirmatory test done my GS/MS or LC/MS otherwise you can sue the company if they fail you on that alone.

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Protonix may be better. Nexium can lower your magnesium levels, so be careful.

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NO

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If they only screened your hair test, then yes those cold medicines could very well cause a false positive test. The only way that it can be proven it is Meth is for them to have the hair confirmed by GC/MS or better yet: LC/MS/MS. This would be proof positive one way or the other. Good luck.

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the best I can tell you is go get a hair analysis and if you have never did meth in you're life then everything should come back fine however the opiates will show up because you have taken them. idk you're full situation but if all you need to prove is you don't have meth in you're system then go get the hair test it don't cost all that much maybe 150$ tops some places are cheaper but if you have in fact taken meth then there, is no need of wasting you're money on a hair test because it will show up an the hair test goes back 90 days you would be better off just coming clean and admitting your guilt. good luck

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My spouse takes a lot of medications. He has come up with a false positive for meth three times. (He sees multiple drs within the va world) the dr wants him to see the neurologist who prescribed selegine. He believes that med is the culprate. It's an Mao inhibitor. Which I was unaware of... even though mao inhibitor are something the g.p. would not perscribe do to the dangers. This med has actually helped immensely. Now because of the false positive for meth, and his opinion. We are now REQUIRED to seen him off in order to retake the drug test. I guarantee 100% this person is not on meth. He's a disabled vet. No access to car, and I handle all of the money. He doesn't leave the home. It's absolutely absurd to contemplate with all his ailments to entertain the idea of meth. One opinion from one Dr will now have this veteran back to uncontrollable shaking. How is this right? Selegine 500mg.

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I thank your husband for his service, and sorry to hear about your situation and I'm not familiar with the medication your husband was prescribed it is possible that it did cause a false positive for methamphetamine that I'm not sure of but there is other medications out there that will cause a false positive and the over the counter medication for heartburn zantac aka ranitidine i know for a fact will cause a false positive for methamphetamine and you can buy that anywhere and I know you said he doesn't leave the house but heartburn is quite common and something like zantac can get easily overlooked as being a possible suspect so just make sure you haven't been giving him zantac for heartburn and if you have then that would explain why he got a positive result for methamphetamine, but like I said there is others out there that will cause a false positive. I just know for a fact zantac is one of them. good luck and I hope you get this matter straightened out.

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Jerry, and everyone....Zantac, and many other meds can cause a false positive screen. But upon confirmation, it would prove out to not be Meth or Amphetamine.
That is why I continue to tell EVERYONE: Urine cups, oral swabs, hair...are all screened and are subject to error. That is why you MUST insist on LC/MS or GC/MS confirmation. It costs more money, but that is the ONLY way to stop false positives.

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yes John I understand how that works all drug test are subject to error without further testing but I think LC/MS GC/MS is pretty standard on the hair test because I remember when my test came back it said all of that on the page next to "negative" so the form of testing depends on how far you need to go back usually when somebody prefers a hair test it's because the drug has done had plenty of time to leave the urine so innocence has got to be proven using another method so more than likely you will see more false positives show up in urine than you will hair because urine test is used more often an hair test is more advanced because it's got to go to a lab to be tested. but there might be such a thing those confirmation test doesn't come standard but all I know is both urine test got it wrong and my blood and hair test come back 100% negative and both pages had the confirmations listed next to the result so I'm assuming the LC/MS GC/MS is part of the package

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