Ge gen jia ban xia tang
ge gen 12 ma huang 9 ban xia 12 gui zhi 6 bai shao 6 sheng jiang 6 da zao 9 zhi gan cao 6
When in tai yang and yang ming combination disease, diarrhea is absent, and only retching is present, ge gen jia ban xia tang governs.
This is a variation of ge gen tang with added ban xia. For a full description see ge gen tang.
Ban xia, Pinelliae rhizoma is pungent dispersing of the liver blood and the ministerial fire in the san jiao. It is pungent dispersing of the cold and dampness in the stomach domain, spleen and lung. It transforms tai yin damp phlegm generated from excessive and stagnant cold dampness and counteracts nausea and adverse flow.
Ban xia transforms phlegm and corrects counter flow qi of the yang ming stomach and descends Metal.