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. Author manuscript; available in PMC: 2014 Jun 1.
Published in final edited form as: Drug Alcohol Depend. 2012 Dec 1;130(0):158–166. doi: 10.1016/j.drugalcdep.2012.10.026

Figure 2.

Figure 2

Time course of the cocaine-like discriminative stimulus of (+)-phenmetrazine (0.1 – 1.0 mg/kg, Panel A), (−)-phenmetrazine (0.32 – 10.0 mg/kg, Panel B), (+)-phendimetrazine (0.32 – 10.0 mg/kg, Panel C), and (−)-phendimetrazine (1.0 – 32.0 mg/kg, Panel D) in rhesus monkeys (n=5). All points represent the mean SEM of 5 monkeys except where indicated by numbers in parentheses in the top panels. In these cases, responding was eliminated in some monkeys, and the parenthetic number indicates the number of subjects responding at levels sufficient to contribute to the data point. Other details as in Figure 1.

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