Reinforcing effects of abused 'bath salts' constituents 3,4-methylenedioxypyrovalerone and -pyrrolidinopentiophenone and their enantiomers

Brenda M. Gannon, Kenner C. Rice, Gregory T. Collins

Research output: Contribution to journalArticlepeer-review

25 Scopus citations


Synthetic cathinones found in abused 'bath salts' preparations are chiral molecules. Racemic 3,4-methylenedioxypyrovalerone (MDPV) and α-pyrrolidinopentiophenone (α-PVP) are two common constituents of these preparations that have been reported to be highly effective reinforcers; however, the relative contribution of each enantiomer toward these effects has not been determined. Thus, male Sprague-Dawley rats were trained to respond for racemic MDPV or α-PVP (n=9/drug), with full dose-response curves for the racemate and the S and R enantiomers of MDPV and α-PVP generated under a progressive ratio schedule of reinforcement. Racemic mixtures of both MDPV and α-PVP as well as each enantiomer maintained responding in a dose-dependent manner, with racemic MDPV and α-PVP being equipotent. The rank order of potency within each drug was S enantiomer>racemate ≫ R enantiomer. Although both enantiomers of α-PVP were as effective as racemic α-PVP, R-MDPV was a slightly less effective reinforcer than both S and racemic MDPV. The results of these studies provide clear evidence that both enantiomers of MDPV and α-PVP function as highly effective reinforcers and likely contribute toward the abuse-related effects of 'bath salts' preparations containing racemic MDPV and/or α-PVP.

Original languageEnglish (US)
Pages (from-to)578-581
Number of pages4
JournalBehavioural pharmacology
Issue number7
StatePublished - May 31 2017


  • bath salts
  • cathinones
  • enantiomers
  • rat
  • self-Administration

ASJC Scopus subject areas

  • Pharmacology
  • Psychiatry and Mental health


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