The present invention relates to a crystalline monohydrate of sodium N-(1H-tetrazol-5-yl)-1-phenoxy-4H-quinolizin-4-one-3-carboxamide which has pharmaceutical actions such as antiallergic and antiulcer actions and to processes for preparation thereof.
本发明涉及一种具有抗过敏和抗溃疡等药物作用的 N-(
1H-四唑-5-基)-1-苯氧基-4H-喹嗪-4-酮-3-甲酰胺
钠的一
水合物结晶及其制备工艺。