<p>This consists of Amlodipine and Bisoprolol Fumarate. Amlodipine is a dihydropyridine calcium antagonist that inhibits the transmembrane influx of calcium ions into vascular smooth muscle and cardiac muscle. The contractile processes of cardiac muscle and vascular smooth muscle are dependent upon the movement of extracellular calcium ions into these cells through specific ion channels. Amlodipine inhibits calcium ion influx across cell membranes selectively, with a greater effect on vascular smooth muscle cells than on cardiac muscle cells. Amlodipine acts directly on vessels to cause a reduction in peripheral vascular resistance and reduction in blood pressure.<br />
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Bisoprolol Fumarate is a synthetic, beta1-selective (cardioselective) adrenoceptor blocking agent, lacking intrinsic sympathomimetic and relevant membrane stabilizing activity. It only shows low affinity to the beta2 receptor of the smooth muscles of bronchi and vessels as well as to the beta2-receptors concerned with metabolic regulation. Therefore, bisoprolol is generally not to be expected to influence airway resistance and beta2-mediated metabolic effects. Its beta1-selectivity extends beyond the therapeutic dose range.</p>