the atypical antipsychotic drug clozapine did not consistently produce similar effects nor did the alpha-adrenoceptor agonist clonidine , the opiate agonist morphine , the benzodiazepine anxiolytic chlordiazepoxide and the muscle relaxant methocarbamol , although all these drugs were tested up to doses which markedly disrupted responding .
C0005064
benzodiazepine
C0008188
chlordiazepoxide