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Levomethamphetamine: Wikis


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Systematic (IUPAC) name
CAS number 537-46-2
ATC code  ?
PubChem 1206
Chemical data
Formula C10H15N 
Mol. mass 149.2
SMILES eMolecules & PubChem
Pharmacokinetic data
Metabolism Hepatic
Excretion Renal
Therapeutic considerations
Pregnancy cat.  ?
Legal status OTC
Routes Nasal Inhalation, Oral
 Yes check.svgY(what is this?)  (verify)

Levomethamphetamine, other names include l-methamphetamine, levodesoxyephedrine, l-desoxyephedrine, and levmetamfetamine (Vicks Vapor Inhaler), is the levorotary (R-isomer) of methamphetamine, levomethamphetamine is a sympathomimetic vasoconstrictor which is the active ingredient used in some over-the-counter nasal decongestants including Vicks Vapor Inhaler.


Levomethamphetamine affects the sympathetic nervous system, but has little activity in the central nervous system so it is not thought to possess an addiction potential anywhere near that of racemic methamphetamine or dextromethamphetamine since it only exerts vasoconstricting effects that make it useful for nasal decongestion.[1]

Side effects

Side effects of use as a nasal decongestant are similar to other sympathomimetic drugs and include hypertension (elevated blood pressure), tachycardia (rapid heart rate), nausea, stomach cramps, dizziness, headache, and tremors.[citation needed]


  1. ^ Topical Decongestants Not Requiring an FDA Warning US Pharmacist Vol. No: 31:07 Posted: 7/20/2006. Accessed via internet 04/03/08

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