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Article Summary

Amphetamine Drug Testing

Tested for in Standard Drug Tests? YES
Detection Period in Urine 1-4 days

Urine Testing

Amphetamines are one of the "NIDA 5". The five drugs tested for in the standard NIDA approved drug test. Amphetamines are commenly detectable in urine for 1-3 days after use. Methamphetamines stay in the system slightly longer, 3-5 days.

The Amphetamine test is an one step competitive immunoassay that is used to screen for the presence of amphetamine in urine. It is a chromatographic absorbent device in which drug or drug metabolites in a sample compete with drug conjugate immobilized on a porous membrane for a limited number of binding sites. This test is a rapid, qualitative immunoassay for the detection of amphetamine in urine. The cutoff concentration for this test is 1000 ng/ml, as recommended by the Substance Abuse and Mental Health Services Administration and NIDA." The cutoff for GC-MS, which detects d-amphetamine and methamphetamine, is 500 ng/ml.

Hair Testing

Amphetamine is detectable with hair tests and is included in the standard set of substances tested for with these tests. Hair tests generally take the most recent 1.5 inches of growth and use those for testing. That provides a detection period of approximately 90 days. If an individual's hair is shorter than 1.5 inches, this detection period will be shorter.

Saliva Testing

In the past few years, new technologies have been developed which allow for saliva testing for the presence of Methamphetamine and its derivatives. We do not currently have information about what the detection period is for these tests.

Substances or Conditions Which can Cause False Positives

In Urine Tests
Ephedrine, pseudoephedrine, propylephedrine, phenylephrine, or desoxyephedrine
(Nyquil, Contact, Sudafed, Allerest, Tavist-D, Dimetapp, etc)
Phenegan-D, Robitussin Cold and Flu, Vicks Nyquil
Over-the-counter diet aids with phenylpropanolamine (Dexatrim, Accutrim)
Over-the-counter nasal sprays (Vicks inhaler, Afrin)
Asthma medications (Marax, Bronkaid tablets, Primatine Tablets)
Prescription medications (Adderall, Amfepramone, Cathne, Etafediabe, Morazone,
...phendimetrazine, phenmetrazine, benzphetamine, fenfluramine, dexfenfluramine,
...dexdenfluramine,Redux, mephentermine, Mesocarb, methoxyphenamine, phentermine,
... amineptine, Pholedrine, hydroymethamphetamine, Dexedrine, amifepramone, clobenzorex,
...fenproyorex, mefenorex, fenelylline, Didrex, dextroamphetamine, methphenidate, Ritalin,
...pemoline, Cylert, selegiline, Deprenyl, Eldepryl, Famprofazone)
Kidney infection, kidney disease
Liver disease, diabetes

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