d,l 泛酸钙(Calcium pantathenate)为水溶性的维生素 B 的一种,主要用于配制复含维生素 B 液剂与片剂,此外还大量用于猪、鸡等家畜家禽的饲养,国外已广泛使用,因此对它的需要量很大。但泛酸钙只有右旋体有药效,故各国药典(除美国药典15版外)一般仅收载其右旋体。在生产上,分离右旋体须使用硫酸奎宁,我国所用硫酸奎宁均须进口,经济上很不合算;同时近年来经过各方面研究,已证明左旋体泛酸钙对人体生理无害,并且有右旋体1/100的药效,因此我 d, l calcium pantothenate (Calcium pantathenate) is a water-soluble vitamin B, mainly used for the preparation of complex vitamin B solution and tablets, in addition to a large number for livestock and poultry such as pigs, chickens, foreign countries have been extensive Use, so it needs a lot. However, calcium pantothenate only dextromethorphan efficacy, so the national pharmacopoeia (except for the United States Pharmacopoeia 15 Edition) generally only contains its dextral body. In production, the separation of dextran must use quinine sulfate, quinine sulfate used in our country must be imported, economically it is uneconomical; the same time in recent years through various studies, has proved that levodopa calcium calcium is harmless to human physiology, and Right-handed body 1/100 of the efficacy, so I