in experiment 1 , rats ( n = 12 ) were trained to discriminate the benzodiazepine ( bdz ) compound chlordiazepoxide ( cdp , 20 mg/kg , ip ) from saline in a two-lever food-reinforced procedure , and subsequently were tested for stimulus control with different doses of cdp , ro 15-1788 ( a proposed bdz receptor antagonist ) and ro 15-1788 plus 20 mg/kg cdp .
C0005064
benzodiazepine
C0008188
chlordiazepoxide