title: A web-based survey on mephedrone.
abstract: BACKGROUND
  This study sought to collect information on the former legal-high 'mephedrone' using a web-based survey targeted at mephedrone users.
  
  
  METHODS
  The survey was advertised on websites frequented by drug users. Individuals were invited to complete the survey if they had taken mephedrone on at least one occasion in the past.
  
  
  RESULTS
  One thousand and six completed forms were received from declared users, making this the largest survey on mephedrone to date.
  
  
  CONCLUSIONS
  Results showed that mephedrone users consider its effects to compare best with those of MDMA, and while MDMA was considered marginally safer and its effects more pleasurable, mephedrone's appeal lay in its availability, low price and reliable purity.
authors.affiliation: Imperial College London, Neuropsychopharmacology Unit, UK. r.carhart-harris@imperial.ac.uk
authors.forename: R L
authors.initials: RL
authors.lastname: Carhart-Harris
authors.forename: L A
authors.initials: LA
authors.lastname: King
authors.forename: D J
authors.initials: DJ
authors.lastname: Nutt
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D000697:Central Nervous System Stimulants / Q000009:adverse effects / Q000191:economics / Q000494:pharmacology; D003042:Cocaine / Q000494:pharmacology; D003132:Commerce; D003625:Data Collection; D015198:Designer Drugs / Q000009:adverse effects / Q000191:economics / Q000494:pharmacology; D055030:Drug Users / Q000331:legislation & jurisprudence / Q000523:psychology*; D005260:Female; D006801:Humans; D013287:Illicit Drugs / Q000009:adverse effects / Q000191:economics* / Q000331:legislation & jurisprudence* / Q000494:pharmacology; D020407:Internet; D008297:Male; D008694:Methamphetamine / Q000009:adverse effects / Q000031:analogs & derivatives* / Q000191:economics / Q000494:pharmacology; D008875:Middle Aged; D018817:N-Methyl-3,4-methylenedioxyamphetamine / Q000494:pharmacology; D055815:Young Adult
chemical_list: D000697:Central Nervous System Stimulants; D015198:Designer Drugs; D013287:Illicit Drugs; D008694:Methamphetamine; C548233:mephedrone; D003042:Cocaine; D018817:N-Methyl-3,4-methylenedioxyamphetamine