◎方  名：小半夏加茯苓湯（利濕之劑）

   總  結：水飲痞眩                                                               

   編  號：004                                                                    

   組  成：半夏、生姜、茯苓                                                       

   主  治：治卒嘔吐，心下痞，膈間有水，眩悸。                                     

   歸  經：足太陽陽明藥也                                                         

   方  義：(1)半夏、生姜行水氣而散逆氣，能止嘔吐。                                

           (2)茯苓寧心氣而泄腎邪，能利小便。                                      

           火因水而下行，則悸眩止而痞消矣。                                       

   變化方：(1)本方除茯苓，名小半夏湯，治支飲嘔吐不渴，亦治黃疸。                  

           (2)本方除茯苓、生姜，加人參、白蜜，名大半夏湯，治反胃，食入即吐。      

   備  注：三因名大半夏湯                                                         

   來  源：金匱