the effects of hydralazine , dihydralazine and 4-propyl-1-hydrazinophthalazine ( 4-propylhydralazine ) were investigated on reflex pressor responses to increased intracranial fluid pressure ( iip ) during occlusion of the abdominal aorta and the vena cava ( mvo ) .
C0012271
dihydralazine
C0020223
hydrazinophthalazine