these results indicate that the accumulation of cyclic amp resulting from the inhibition of cyclic amp phosphodiesterase plays an important role in the action of new positive inotropic agents , milrinone , amrinone , mdl 17,043 , mdl 19,205 , opc-8212 , and sulmazole ( less than or equal to 3 x 10 ( -4 ) m ) , on dog ventricular muscle .
C0128513
milrinone
C0002697
amrinone