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. Author manuscript; available in PMC: 2009 Dec 1.
Published in final edited form as: Exp Clin Psychopharmacol. 2008 Dec;16(6):458–474. doi: 10.1037/a0014103

Figure 3.

Figure 3

Acute effects of phentermine on rates of responding maintained under a fixed ratio (FR) 30 schedule of food (●) or cocaine (□) reinforcement. Different unit doses of intravenous cocaine, 10–100 μg/kg/injection, are indicated. Phentermine was administered intravenously. Effects on responding are mean ± SEM, expressed as percentage of individual control rates of responding for N = 3–4 monkeys. Control variability (filled symbols) is expressed as the average of individual coefficients of variation. Data taken from Wojnicki et al. (1999).