REVIEW By deforming the channel, inhibiting ion-control gating mechanisms, and/or interfering with the release of calcium from the sarcoplasmic reticulum, Nisoldipine inhibits the influx of extracellular calcium across the myocardial and vascular smooth muscle cell membranes The decrease in intracellular calcium inhibits the contractile processes of the myocardial smooth muscle cells, causing dilation of the coronary and systemic arteries, increased oxygen delivery to the myocardial tissue, decreased total peripheral resistance, decreased systemic blood pressure, and decreased afterload.
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Missan S, Zhabyeyev P, Dyachok O, Jones SE, McDonald TF: Block of cardiac delayed-rectifier and inward-rectifier K+ currents by nisoldipine. Br J Pharmacol. 2003 Nov;140(5):863-70. Epub 2003 Oct 6.
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