Милринон

Описание

Milrinone, an inhibitor of phosphodiesterase selective for fraction III PDE, exerts a positive inotropic effect on the heart as well as a peripheral vasodilatory effect. Milrinone given intravenously produces significant improvements on cardiac output, pulmonary capillary wedge pressure and vascular resistance without significant effects on the heart rate.

Химические свойства

Crystalline Solid

Использование

It is used (particularly intravenously, as the lactate) for the short-term management of severe heart failure. Milrinone inhibits the action of phosphodiesterase-3 preventing degradation of cAMP. The corresponding increase in cAMP levels leads to increased activation of protein kinase A. It is a selective phosphodiesterase inhibitor with vasodilating and positive inotropic activity.

Общее описание

Milrinone, 1,6-dihydro-2-methyl-6-oxo-3,4＇-bipyridine-5-carbonitrile (Primacor), is another dipyridinephosphodiesterase F-III inhibitor that possesses pharmacologicalproperties similar to those of amrinone. The inhibitionof the degradation of cAMP results in an increase in the cardiacmuscle’s force of contraction.

Биологическая активность

Potent cAMP phosphodiesterase inhibitor (IC 50 = 56 nM for inhibition of PDE III). Has inotropic and vasodilator effects following oral or intravenous administration in vivo . Also available as part of the Phosphodiesterase Inhibitor Tocriset™ .