Titre du document / Document title

Characterizing the subjective, psychomotor, and physiological effects of oral oxycodone in non-drug-abusing volunteers

Auteur(s) / Author(s)

ZACNY James P. ⁽¹⁾ ; GUTIERREZ Sandra ⁽¹⁾ ;

Affiliation(s) du ou des auteurs / Author(s) Affiliation(s)

⁽¹⁾ Department of Anesthesia and Critical Care/MC 4028, The Pritzker School of Medicine, University of Chicago, 5841 S. Maryland Avenue, Chicago, IL 60637, ETATS-UNIS

Résumé / Abstract

Rationale: The subjective, psychomotor, and physiological effects of a widely prescribed and abused prescription opioid, oxycodone, have not been studied in a population of non-drug-abusing people. Objectives: To characterize the effects of oxycodone in non-drug-abusing volunteers. Methods: Eighteen volunteers participated in a crossover, randomized, double-blind study in which they received, all p.o., placebo, 10 mg oxycodone, 20 mg oxycodone, 30 mg oxycodone, 40 mg morphine, and 2 mg lorazepam. Measures were assessed before and for 300 min after drug administration. End-of-session and 24-h post-session measures were taken to assess residual drug effects and overall subjects' assessments of the drug effects. Results: Subjective effects of oxycodone were dose related, with the majority of statistically significant effects limited to the two higher doses tested. Oxycodone produced a profile of subjective effects that included both pleasant and unpleasant effects. Morphine in general produced effects similar in magnitude to those of 10 mg and 20 mg oxycodone. Peak liking and drug-wanting ratings were increased by all doses of oxycodone and by morphine, and trough ratings of liking (dislike) were lower in the 20-mg and 30-mg oxycodone conditions, relative to the placebo condition. Post-session ratings of overall liking and drug wanting were not statistically significant, either at the end of the session or 24 h later. Cognitive and psychomotor impairment were obtained with the higher doses of oxycodone, but to a much lesser degree than that of lorazepam. Miosis and exophoria were increased in a dose-related manner by oxycodone. Conclusions: Oxycodone produced effects similar to those of other mu opioid agonists. Although oxycodone produced abuse liability-related subjective effects, it also produced unpleasant effects, a phenomenon we have observed in other opioid studies in non-drug-abusing volunteers.

Revue / Journal Title

Psychopharmacologia   ISSN 0033-3158   CODEN PSYPAG 

Source / Source

2003, vol. 170, n^o3, pp. 242-254 [13 page(s) (article)] (1 p.1/4)

Langue / Language

Anglais

Editeur / Publisher

Springer, Berlin, ALLEMAGNE  (1959) (Revue)

Mots-clés anglais / English Keywords

Nervous system diseases ; Central nervous system disease ; Opiates ; Narcotic analgesic ; Locomotion ; Psychomotricity ; Oral administration ; Toxicity ; Healthy subject ; Volunteer ; Human ; Oxycodone ;

Mots-clés français / French Keywords

Système nerveux pathologie ; Système nerveux central pathologie ; Opiacés ; Analgésique narcotique ; Locomotion ; Psychomotricité ; Voie orale ; Toxicité ; Individu sain ; Volontaire ; Homme ; Oxycodone ;

Mots-clés espagnols / Spanish Keywords

Sistema nervioso patología ; Sistema nervosio central patología ; Opiados ; Analgésico narcotico ; Locomoción ; Psicomotricidad ; Vía oral ; Toxicidad ; Individuo sano ; Voluntario ; Hombre ; Oxicodona ;

Mots-clés d'auteur / Author Keywords

Opioid ; Oxycodone ; Subjective ; Abuse liability ; Human ;

Localisation / Location

INIST-CNRS, Cote INIST : 1761, 35400011600138.0030