Intravenous self-administration studies with l-deprenyl (selegiline) in monkeys.
l-Deprenyl and its stereoisomer d-deprenyl did not maintain intravenous self-administration behavior in rhesus monkeys. In contrast, l-methamphetamine, the major metabolite of l-deprenyl, as well as the baseline drug, cocaine, maintained high rates of intravenous self-administration behavior. Treatment with l-deprenyl doses up to 1.0 mg/kg before self-administration sessions failed to alter self-administration of either cocaine or l-methamphetamine. Thus l-deprenyl did not appear to have cocaine- or methamphetamine-like reinforcing properties in monkeys and was ineffective in altering established patterns of psychomotor-stimulant self-administration behavior. These results support clinical findings that despite long-term use of l-deprenyl for the treatment of Parkinson's disease by large numbers of patients, no instances of abuse have been documented. l-Deprenyl has recently been suggested as a potential medication for the treatment of various types of drug abuse, including cocaine abuse, but its failure to produce selective effects in decreasing cocaine or methamphetamine self-administration behavior in the present experiments makes such an application seem unlikely.
Winger
G D
GD
Department of Pharmacology, University of Michigan Medical School, Ann Arbor.
Yasar
S
S
Negus
S S
SS
Goldberg
S R
SR
D000818:Animals; D007275:Injections, Intravenous; D008253:Macaca mulatta; D012642:Selegiline / Q000008:administration & dosage* / Q000009:adverse effects*; D012646:Self Administration; D019966:Substance-Related Disorders / Q000209:etiology*
D012642:Selegiline