A low dose of aripiprazole attenuates the subject-rated effects of d-amphetamine

Research output: Contribution to journalArticlepeer-review

50 Scopus citations

Abstract

Despite increased reports of amphetamine abuse and dependence, a putative pharmacotherapy has yet to be identified. In a previous study from our laboratory, 20 mg aripiprazole, an atypical antipsychotic that has partial agonist activity at D2 receptors, attenuated many of the behavioral effects of d-amphetamine. Aripiprazole (20 mg) also impaired performance on a computerized version of the DSST when administered alone, indicating that the attenuation observed may have been functional as opposed to receptor mediated. The present experiment was conducted to determine whether a lower dose of aripiprazole (10 mg) could acutely attenuate the discriminative-stimulus, subject-rated, and physiological effects of d-amphetamine (2.5-15 mg) without impairing performance as measured with a computerized version of the DSST. The results of the present experiment indicate that 10 mg aripiprazole attenuated some abuse-related behavioral effects of d-amphetamine and was generally devoid of effects, including significant performance impairment, when administered alone. These findings suggest that 10 mg aripiprazole would be a reasonable starting dose for the treatment of stimulant abuse and dependence. Future research should examine the effects of chronic aripiprazole administration in combination with methamphetamine or cocaine.

Original languageEnglish
Pages (from-to)206-209
Number of pages4
JournalDrug and Alcohol Dependence
Volume84
Issue number2
DOIs
StatePublished - Sep 15 2006

Bibliographical note

Funding Information:
Grants from the National Institute on Drug Abuse (R01 DA 010325, R01 DA 017711, and T32 DA007304) supported this research. This research was conducted in partial fulfillment of William W. Stoops’ doctoral degree in the College of Arts and Sciences at the University of Kentucky. The authors wish to thank Frances Wagner, R.N., for her expert medical assistance and John Blackburn, Michelle Gray, Jamie Haga, Derek Roe, and Andrea Vansickel for their skilled technical assistance.

Keywords

  • Aripiprazole
  • Drug discrimination
  • Partial agonist
  • Subject-rated effects
  • d-Amphetamine

ASJC Scopus subject areas

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

Fingerprint

Dive into the research topics of 'A low dose of aripiprazole attenuates the subject-rated effects of d-amphetamine'. Together they form a unique fingerprint.

Cite this