桂枝汤,是《伤寒论》开列的第一方,也是太阳中风证的主方。从桂枝汤衍化出来的重要方剂有二十四方之多,所以柯韵伯称为仲景群方之魁,张路玉列之为“祖方”。它在伤寒诸方中确占有重要位置。现对桂枝汤主治太阳中风证的机理及其方义和服法加以初步探讨。一、太阳中风的病因病机太阳中风的主证主脉是:头痛、发热、汗出、恶风、脉浮缓。若与发热、恶寒、不汗出、脉浮紧的太阳伤寒相区别,伤寒为太阳表实证;中风为太阳表虚证。伤寒的病因是寒邪;中风的病因是风邪。就自然界气候而 Guizhi Tang is the first party listed in “Treatise on Febrile Diseases” and is also the main party of the Sun Stroke Certificate. There are twenty-four important prescriptions derived from Guizhi Tang, so Ke Yunbo called Zhong Jingqun Fang Zhikui and Zhang Luyu listed him as “Zu Fang”. It does occupy an important position in the typhoid fever. The mechanism of Guizhi decoction indicating the syndrome of sunstroke and its method of formulating Yiheism are discussed. First, the cause of the pathogenesis of the sun Stroke The main pulse of the sunstroke is: headache, fever, sweating, bad wind, slow pulse floating. If it is distinguished from fever, chills, inability to sweat, and fluctuating sun typhoid fever, typhoid fever is a demonstration of the sun. Stroke is a symptom of the sun. The cause of typhoid fever is cold pathogenic; the cause of stroke is wind evil. In terms of the natural climate