d-1 dopamine receptor-stimulated cyclic amp efflux from rat neostriatal slices ( induced by 30 microm dopamine + 10 microm ( - ) sulpiride ) was concentration-dependently reduced by morphine , [ d-ala-d-leu ] -enkephalin ( dadle ) , [ d-pen-d-pen ] enkephalin ( dpdpe ) and bremazocine .
C0014294
leu
C0079286
dadle