半夏,性味辛,温,有毒。具有燥湿化痰,降逆止呕,消痞散结功能。用于痰多咳喘,痰饮眩悸,风痰眩晕,痰厥头痛,呕吐反胃,胸脘痞闷,梅核气症。一般内服多用炮制品,制后可减少其毒性和对牯膜的刺激作用。有文献表明:制半夏概念包括清半夏、姜半夏,法半夏。中国药典1985年版一部在半夏的炮制 Pinellia, sexually spicy, warm and toxic. With dampness and phlegm, Jiangni vomiting, eliminate sputum function. For more than cough cough, phlegm diarrhoea, wind dizziness, headache, vomiting nausea, chest tightness, plum nuclear gas disease. Ordinarily used multi-purpose products, after the system can reduce its toxicity and irritating effect on the diaphragm. Some literature shows that the concept of Pinellia ternata includes Pinellia ternata, Pinellia ternata, Pinellia ternata. Chinese Pharmacopoeia, 1985 edition, concocted in Pinellia