This invention is directed to a formulation of cardiotonic phosphodiesterase inhibitors with a water-soluble vitamin, comprising a lyophilization step performed on a sulution of the complex in an aqueous/organic solvent system. The formulation results in a complex that has been found to have enhanced solubility (over the compound alone) in a parenterally or orally acceptable solvent, and the lyophilization process yields a product with superior stability permitting an extended shelf life.
本发明涉及一种含
水溶性
维生素的强心
磷酸二酯酶抑制剂的制剂,包括在
水/有机溶剂系统中对复合物的稀释液进行冻干的步骤。 该制剂产生的复合物已被发现在肠胃或口服可接受的溶剂中具有更高的溶解度(高于单独的化合物),冻干过程产生的产品具有极佳的稳定性,可延长保质期。