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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
1

REINFORCING, SUBJECTIVE, AND COGNITIVE EFFECTS OF METHAMPHETAMINE DURING D-AMPHETAMINE MAINTENANCE

Pike, Erika 01 January 2013 (has links)
Translational research suggests that agonist replacement may be a viable treatment approach for managing methamphetamine dependence. This study sought to determine the effects of d-amphetamine maintenance on methamphetamine self-administration in stimulant using participants. A cognitive battery was used to determine the performance effects of methamphetamine alone and during d-amphetamine maintenance. During each maintenance condition, participants first sampled a dose of intranasal methamphetamine then had the opportunity to respond on a progressive ratio task to earn portions of the sampled dose. Subject-rated drug-effect and physiological measures were completed prior to and after sampling methamphetamine. Methamphetamine was self-administered as function of dose regardless of the maintenance condition. Methamphetamine produced prototypical subject-rated effects, some of which were attenuated by d-amphetamine maintenance. Methamphetamine was well tolerated during d-amphetamine maintenance and no adverse events occurred. The self-administration results are concordant with those of clinical trials that show d-amphetamine did not reduce methamphetamine use. Generally, there was no difference in cognitive performance after methamphetamine administration during both placebo and d-amphetamine maintenance. Overall d-amphetamine does not appear to be a viable treatment for preventing methamphetamine relapse, but translational literature suggests that other agonist medications or the combination of pharmacotherapy and behavioral therapies may be effective.

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