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Ephedrine can show a false positive for amphetamines on a drug test.

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14y ago

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Can you use ephedrine and not have it show up n a drug test?

Not if the test is for ephedrine.


Does ephedrine make you test positive for opiates?

No.


How can you test the purity of tungsten?

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Will ephedrine show up in a drugs test?

yes


Can you test positive for amphetamine if taking ephedrine?

yes so dont do it


Can a lab tell that ephedrine is present on a drug test?

Yes. However, ephedrine is not commonly tested for. If it is tested for depends on if it is a banned substance for whatever reason you are being drug tested. The International Olympic Committee bans ephedrine use after a certain threshold for example. Ephedrine is not an illegal drug outside of most competitions.


I have test tomorrow will it work on meth or am ephedrine?

It won't if you wait 2 more days.


Can Zyrtec make you test positive for meth?

No, Zyrtec does not contain any ephedrine/psyeudoephedrine ingredients.


Can you fail a drug test because of using ephedrine?

Absolutely! Ephedrine and it's cousin pseudoephedrine show as false positives for amphetimines in urine, sweat and hair test. However in multi-panel test such as a saliva test when the authority is testing for both amphetimine AND methamphetimine it will show as meth since is is a primary drug for making meth. It will show up as positive EVERYTIME so be careful! If you are taking a test that only test for amphetimines it will show up as positive there. Not all drug test are equal. Some only test for a broad category as amphetimines. Others separate between amphetiminies and methamphetimines.


Can Pseudoephedrine give false positive for amphetamines?

Yes. All variations of methamphetamine, amphetamine, methcathinone and ephedrine have very similar molecular structures, and they all break down to the same compound in your body. In fact, ephedrine is a necessary precursor in synthesizing the other three drugs. Urine tests, especially portable on-the-spot ones, are designed to detect this compound that these drugs break down into, not the drugs themselves, so whether you are on methamphetamine, amphetamine, methcathinone, or ephedrine or even pseudo ephedrine, you can test positive for amphetamines. If you do test positive and you know you were only on ephedrine or pseudoephedrine, you can request a re-test that involves a proper lab using blood or hair samples


What would show methamphetamines in a blood test other than meth?

Perhaps pseudoephedrine (Sudafed) or ephedrine.


If you fail a urine test for ephedrine and they send it to the lab can they tell what it is?

yes depending on how and who (expense wise) do the test, different lab tests (companys) can do the test depending on the cost(for the company) and how far they look into it. Different procedures cost more money but hey could be wrong not a scientist