Antacid effects of Chinese herbal prescriptions assessed by a modified artificial stomach model

AIM:To assess the antacid effects of the tonic Chinese herbal prescriptions,Si-Jun-Zi-Tang(SJZT) and Shen-Ling-Bai-Zhu-San(SLBZS).METHODS:Decoctions of the tonic Chinese herbal prescriptions,SJZT and SLBZS,were prepared according to Chinese original documents.The pH of the prescription decoctions and their neutralizing effects on artif icial gastric acids were determined and compared with water and the active controls,sodium bicarbonate and colloidal aluminum phosphate.A modified model of Vatier's artificia...