半夏药用理论的形成与演变

Formation and Development of the pharmaceutical Theory of Banxia

在以滑养窍、以滑去着通闭理论指导下,汉代用半夏治七窍、毛窍、心窍等诸窍不利;治结滞不通之失眠、结胸、胸痹、痞病等。以滑养窍理论淡化后,半夏用多去涎,药性由辛平涎滑变为温燥,功用则抽象为去痰散结。

Under the guidance of the theory that smooth character having the function of nourishing body orifices and removing turbidness, the medicine Banxia（ Pinellia ternata） was used to treating uusmooth of body orifices, like seven orifices, sweat pore （ hair orifices） , heart orifice and so on. Banxia was also applied in the therapy of blockage, like insomnia, thoracic accumulation of pathogen, thoracic obstruction, abdominal mass and so on. With weaken of the theory that smooth character has the function of nourishing body orifices, foam of Banxia was got rid of when applied. The property of Banxia changed to be warm and dry from pungent, mild, full of foam, smooth. The function was abstracted as removing phlegm and stasis.