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Additional
methamphetamine
English Wikipedia - The Free Encyclopedia
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Methamphetamine
Methamphetamine
(contracted from ) is a strong
central nervous system
(CNS)
stimulant
that is mainly used as a
recreational drug
.
Methamphetamine hydrochloride
is approved by the
United States Food and Drug Administration
(USFDA) under the trade name
Desoxyn
for
attention deficit hyperactivity disorder
and
obesity
in adults and children, and is sometimes prescribed
off label
for
narcolepsy
and
idiopathic hypersomnia
. It is rarely prescribed due to concerns involving human
neurotoxicity
and its high potential for recreational use, among other concerns, and the availability of safer
substitute
drugs with comparable treatment efficacy. Methamphetamine exists as two
enantiomers
: dextromethamphetamine and
levomethamphetamine
.
Methamphetamine
properly refers to a specific chemical, the
racemic
free base
, which is an equal mixture of
levomethamphetamine
and dextromethamphetamine in their pure amine forms. Dextromethamphetamine is a much stronger
central
stimulant than
levomethamphetamine
. Both
enantiomers
are
neurotoxic
and
addictive
.
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