Repeated administration intensifies the reinforcing effect of fencamfamine in rats
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1. In the present study, we evaluated the role of repeated administration on conditioning place preference (CPP) induced by fencamfamine (FCF) in male rats.2. Repeated FCF (3.5 mg/kg) or saline once or daily for ten consecutive days enhanced sniffing du ration and decreased locomotion and rearing duration.3. At the 3.5 mg/kg dose, FCF produced a significant place-preference effect.4. Repeated exposures to FCF intensified its reinforcing properties.5. These results suggest that repeated FCF administration sensitizes its rewarding effects, as with other addictive substances. GEN PHARMAC 29;2:265-261, 1997. (C) 1997 Elsevier B.V.