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Doctor insights on: How Long Does Meth Show Positive In A Drug Test

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Dr. Alan Wartenberg
582 Doctors shared insights

Drug Testing (Definition)

It is the process of examining body fluids or tissue for evidence of chemicals taken or not taken. It does not diagnose addiction however this a ...Read more


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How long does methamphetamine show up on a drug test for a regular user of 6 months?

How long does methamphetamine show up on a drug test for a regular user of 6 months?

About a week: Urine test may be positive for a week or so in a chronic user, from the last date of use. See this site for more info. Http://www. Nhtsa. Gov/people/injury/research/job185drugs/methamphetamine.htm. Read more

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Can taking psuedephedrine show up as meth in a drug test?

Can taking psuedephedrine show up as meth in a drug test?

Yes, but only in: Screening tests, not in confirmatory tests. It does not show up as methamphetamine but rather as amphetamine itself. Confirmatory tests (gas chromatography, mass spectroscopy and others) can definitively determine whether there is methamphetamine or amphetamine and differentiate it from pseudoephedrine, but the screening tests cannot. Read more

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How long will meth stay in your system with a urine drug test?

10 days or less: For most individuals having used the substance, the general consensus is often noted as a maximum of 10 days that methamphetamine remains detectable via a urine drug test. Often it is more like 3-5 days. The urine test rarely gives an incorrect finding if meth is in there. It can be detected in hair for much much longer. Meth is highly addictive, dangerous & harmful to mental and physical health. Read more

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What kind of prescription medicine could show up as meth in a drug test? .

What kind of prescription medicine could show up as meth in a drug test? .

Depends: If by "meth" you are referring to amphetamines, there are a number of prescriptions legitimately in use that are amphetamines. These include certain, but not all medication used for adhd, and appetite suppressants. If you are referring to "crystal meth" that too will be picked up by all screens testing for amphetamines. Read more

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Does tri adalean diet pills show up as meth on a drug test?

Does tri adalean diet pills show up as meth on a drug test?

Possibly: Triadalean contains multiple stimulants including various phenylethylamines, theobromine, caffeine, and guarana. Some of these could show up as initial false positives for amphetamines, but more focused testing would be done. Triadalean has strong potential to cause jitteriness and anxiety, with little support for effectiveness in weight loss. Read more

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Can provigil cause positive drug test for meth?

Can provigil cause positive drug test for meth?

It should not: Although Provigil is a stimulant of sorts, its chemical makeup is dissimilar to amphetamines and should not cause a false positive drug test. Read more

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Hello doctors, can Ultram show up as meth on a drug test?

Hello doctors, can Ultram show up as meth on a drug test?

No: There are no reports of any such false positives with tramadol to my knowledge, or in the literature. I checked several authoritative sites and cannot find any references to this. I found that on drug bulletin boards, many people (all anonymous, ? authority) say that it does show up as methadone. It definitely does not cause false positive for methamphetamine. Meth can mean either. Read more

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How does a home drug test detect drugs in your urine such as meth and why do some prescription drugs test positive?

How does a home drug test detect drugs in your urine such as meth and why do some prescription drugs test positive?

Drug tests: Drug tests are used as much to determine what the person has not taken as to what the person has taken. Drug tests may look for illegal drugs. More often they test patients to make sure that they are taking their medications. Sometimes patients sell their medications or feel that they do not need the medication and stop taking it. Drug tests are used for these purposes. Read more

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Currently taking Vyvanse (lisdexamfetamine) and since it has amphetamines in it, I am concerned I would come out as positive for meth in a drug test. Is this possible?

It is possible: Vyvanse (lisdexamfetamine) vs. Meth. Vyvanse (lisdexamfetamine) is dextroamphetamine. Methamphetamine has the extra Methyl and is a strong oxidant with organic chemicals. A positive drug test in your case should not affect you as long as you disclose the Vyvanse (lisdexamfetamine) intake as your current medication. Read more

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Been taking pseudophedrine HCl 60mg every 4-6 hrs for past 3 days due the flu. I have to take a drug test on monday. Will I test positive for meth?

Been taking pseudophedrine HCl 60mg every 4-6 hrs for past 3 days due the flu. I have to take a drug test on monday. Will I test positive for meth?

No: If drug tests are properly done, the initial test is a screening test, which then must be confirmed with more complex and sophisticated testing. Screening tests may show positive for amphetamine with use of sudafed and other decongestants, but the confirmatory tests will not be positive. If whoever is doing the test does not do confirmatory testing, you should seek your legal options if positive. Read more

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Could I come out positive for meth if they swab my hand for an ion drug test?

Could I come out positive for meth if they swab my hand for an ion drug test?

Sure: An ION drug test is a screening test. Like any kind of test, anybody's result can be positive or be negative. A person who tests positive is a true positive if she has the substance, but is a false positive if she has none of the substance. The technology can be helpful in other settings, such as screening passengers and cargo at airports for drugs and explosives. Read more