TY - JOUR PY - 2001// TI - Behavioral pharmacological similarities between methylphenidate and cocaine in cocaine abusers JO - Experimental and clinical psychopharmacology A1 - Rush, C. R. A1 - Baker, R. W. SP - 59 EP - 73 VL - 9 IS - 1 N2 - Six human participants with recent histories of cocaine use were trained to discriminate 200 mg oral cocaine hydrochloride. A range of doses of oral cocaine (50-300 mg), methylphenidate (15-90 mg), triazolam (0.125-0.75 mg), and placebo were then tested to determine whether they shared discriminative-stimulus and participant-rated effects with 200 mg cocaine. Cocaine and methylphenidate dose-dependently increased cocaine-appropriate responding, produced prototypical stimulant-like participant-rated drug effects (e.g., increased participant ratings of Drug Liking), and increased heart rate and blood pressure. Triazolam produced low levels of cocaine-appropriate responding and impaired performance. Thus, consistent with previous studies, humans can reliably discriminate oral cocaine. Consistent with in vivo behavioral neuropharmacological data, the discriminative-stimulus, participant-rated, and physiological effects of oral cocaine and methylphenidate were similar.
Language: en
LA - en SN - 1064-1297 UR - http://dx.doi.org/ ID - ref1 ER -