Substances
or Conditions which can cause false positives
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 (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
Amphetamines
Drug Facts
Amphetamine,
dextroamphetamine, methamphetamine, and their various salts,
are collectively referred to as amphetamines. In fact, their
chemical properties and actions are so similar that even experienced
users have difficulty knowing which drug they have taken.
Amphetamines are generally taken orally or injected. However,
the addition of "ice," the slang name for crystallized
methamphetamine hydrochloride, has promoted smoking as another
mode of administration. Just as "crack" is smokable
cocaine, "ice" is smokable methamphetamine. Methamphetamine,
in all its forms, is highly addictive and toxic.
The
effects of amphetamines, especially methamphetamine, are similar
to cocaine, but their onset is slower and their duration is
longer. In contrast to cocaine, which is quickly removed from
the brain and is almost completely metabolized, amphetamines,methamphetamine
remains in the central nervous system longer, and a larger
percentage of the drug remains unchanged in the body, producing
prolonged stimulant effects. Chronic abuse produces a psychosis
that resembles schizophrenia and is characterized by paranoia,
picking at the skin, preoccupation with one's own thoughts,
and auditory and visual hallucinations.
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