Comparative abuse liability of sertraline,
alprazolam, and dextroamphetamine
in humans
by
Zawertailo LA, Busto U, Kaplan HL, Sellers EM
Mental Health Unit,
Addiction Research Foundation,
Toronto, Ontario, Canada .
J Clin Psychopharmacol 1995 Apr; 15(2):117-24
ABSTRACT
Sertraline is an effective antidepressant acting as a selective serotonin
reuptake inhibitor. The subjective and behavioral effects of sertraline were
studied and compared with the effects of alprazolam and dextroamphetamine in a
within-subject, randomized, double-blind study in 20 volunteers aged 18 to 46
years. These subjects were experienced but nondependent users of central nervous
system depressants who had the ability to reliably distinguish secobarbital, 150
mg, from placebo and to report positive subjective effects of secobarbital in an
experimental setting. The following drug conditions were tested: sertraline, 100
and 200 mg; alprazolam, 1 mg; dextroamphetamine, 10 mg; and placebo. Drug
effects were assessed with an objective test of psychomotor performance,
subject-rated questionnaires, and observer-rated scales. Both alprazolam and
dextroamphetamine were distinguishable from placebo on most measures, but
sertraline produced effects discernable from placebo on only a few measures. At
1 hour postdrug administration, dextroamphetamine and alprazolam produced
positive effects on several measures of elation, euphoria, and drug liking
greater than placebo and both doses of sertraline. In contrast, sertraline
produced higher scores on measures of dysphoria and physical unpleasantness than
did the other drug conditions. Observer ratings of satisfaction with the drug
and other pharmacologic effects were consistent with these findings. Results
from this study indicate that sertraline, at the doses tested, does not possess
the behavioral effects profile considered to be indicative of abuse potential
when compared with alprazolam and dextroamphetamine.
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