YS-201是二氢吡啶类钙通道 (calcium channel) 拮抗剂，有潜力用于心绞痛和高血压的研究。

YS-201 is a dihydropyridine-type calcium channel antagonist. YS-201 has the potential for angina pectoris and hypertension treatment.

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YS-201 (Diperdipine) markedly reduces systemic vascular resistance and improves stroke index and left ventricular ejection fraction. Mean pulmonary artery and wedge pressures are slightly increased as a possible consequence of enhanced venous return, whereas right atrial and left ventricular end-diastolic pressures are not significantly changed. Nevertheless, an increase in preload is clearly indicated by an augmented left ventricular end-diastolic volume index after administration of diperdipine. After intravenous and oral doses, absolute bioavailability is calculated to be 18.7%. Biliaryexcretion accounts for about 0.1% of the total clearance of diperdipine and does not contribute to the overall elimination of the drug. After intraportal administration, the bioavailable fraction of diperdipine is increasing up to 44.3% suggesting a prehepatic site of loss of the drug. The si

Room temperature in continental US; may vary elsewhere.

Powder -20°C 3 years；4°C 2 years

[1]. Di Donato M, et al. Acute hemodynamic effects of intravenous diperdipine, a new dihydropyridine derivative, in coronary heart disease. Am Heart J. 1991 Mar;121(3 Pt 1):776-81.
[2]. Greiner PO, et al. Evaluation of first pass effect and biliary excretion of diperdipine in the dog. Eur J Drug Metab Pharmacokinet. 1990 Jul-Sep;15(3):185-90.