Experimental Studies on Pharmacological Action of the Banhahubagtang, A Combined Preparation of Oriental Medicine

반하후박탕(半夏厚朴湯)의 실험약리학적(實驗藥理學的) 연구(硏究)

The effects of the water extract of 'Banhahubagtang', the combined herbal medicine, on the low esophageal sphincter, stomach, small intestine and CNS were investigated, and the results were as follows: The hexobarbital induced sleeping time was prolonged in female mice. The convulsion induced by electric shock was suppressed and analgesic action was recognized in mice. The extract inhibited intestinal propulsion of barium sulfate in mice. The extract inhibited free acid secretion and showed remarkable suppression of gastric ulcer in rats. Relaxation induced by isoproterenol and norepinephrine in low esophageal sphincter(L.E.S.) of rabbit was potentiated by addition of the extract. In conclusion, the Banhahubagtang exhibited anticonvulsive, sedative and L.E.S. inhibitory activities. These experimental results might indicate to be coincided with the indications for neuro-esophago-stenosis, esophagitis, esophagia, gastralgia, and neurosis which are well referred to the literature of oriental medicine.