Phencyclidine- and diazepam-like discriminative stimulus effects of inhalants in mice

Scott E. Bowen, Jenny L. Wiley, Hendrée E. Jones, Robert L. Balster

Research output: Contribution to journalArticlepeer-review

48 Scopus citations


It has been shown that abused solvents, such as 1,1,1-trichloroethane (TCE) and toluene, share certain pharmacological properties with central nervous system depressants, such as alcohol and anesthetic vapors. Several vapors were tested for diazepam (DZ)- and phencyclidine (PCP)-like discriminative stimulus effects to further explore their pharmacological specificity. In DZ-trained mice, methoxyflurane fully substituted, and TCE produced partial substitution. Flurothyl and toluene produced no appreciable DZ-lever responding at any concentration tested. On the other hand, toluene produced concentration-related partial substitution for PCP, whereas methoxyflurane, TCE, and flurothyl did not substitute. The substitution of some these vapors for DZ or PCP suggests that, like ethanol, the discriminative stimulus effects of abused solvents partially overlap those of N-methyl-D-aspartate antagonists as well as those of gamma amino butyric acid agonists.

Original languageEnglish (US)
Pages (from-to)28-37
Number of pages10
JournalExperimental and clinical psychopharmacology
Issue number1
StatePublished - Feb 1999
Externally publishedYes

ASJC Scopus subject areas

  • Pharmacology
  • Psychiatry and Mental health
  • Pharmacology (medical)


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