论文部分内容阅读
多年来广泛应用抗酸药治疗十二指肠溃疡病,然而它对溃疡的愈合效能只是不久前才得到肯定。抗酸药的种类抗酸药可以按照它具有系统性或非系统性效应而分为系统性抗酸药(systemic antacids)和非系统性抗酸药(nonsystemic antacids)两大类。系统性抗酸药由于它的阳离子部分在肠内不形成不溶性碱性化合物而可致代谢性碱中毒;非系统性抗酸药由于它的阳离子部分在肠内形成不溶性碱性化合物而相对不溶解和难吸收,因此不引起体液的碱化。一、系统性抗酸药碳酸氢钠NaHCO_3+HCl→NaCl+H_2O+CO_2 碳酸氢钠(sodium bicarbonate)是系统性抗酸
Antiacid drugs have been widely used over the years to treat duodenal ulcer disease, yet its efficacy in healing ulcers was only recently recognized. Antacid Types Antacids can be classified into systemic antacids and nonsystemic antacids according to their systemic or non-systemic effects. Systemic antacids can cause metabolic alkalosis due to their cationic moieties that do not form insoluble basic compounds in the intestine; non-systemic antacids are relatively insoluble due to their cationic moieties that form insoluble basic compounds in the intestine And difficult to absorb, it does not cause bodily alkalization. A systemic antacid Sodium bicarbonate NaHCO 3 + HCl → NaCl + H 2 O + CO 2 Sodium bicarbonate is a systemic antacid