Abstract
Rats were trained in a 2-lever, food-motivated operant task to discriminate intraperitoneal administration of ethanol (600 mg/kg) from vehicle. Dose-response curves for the ethanol cue were analyzed before and after pre-treatment of rats with intraperitoneal doses of 0.4 mg/kg or 0.2 mg/kg nicotine. Results demonstrate that nicotine potentiates ethanol-appropriate responding in test sessions. The results are discussed in light of the recognized correlation between smoking and alcohol intake.
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