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乳果糖(lactulose)是一种不被吸收的双糖,它作为一种渗透性泻药,长期以来用于治疗便秘既安全又有效。但因价格昂贵使它变得难以实用,特别对很多老年病人更是如此。Minneapoolis 退伍军人医学中心的研究工作者将乳果糖与一种药物作用相同,但价格低1/6～1/10的山梨醇进行了比较。在一个随机抽样双盲交差试验中,30例平
Lactulose, an unabsorbed disaccharide, acts as an osmotic laxative that has long been used both as a safe and effective treatment for constipation. But it has become impractical because of its high cost, especially for many elderly patients. Researchers at the Minneapoolis Veterans Affairs Medical Center compared lactulose with one drug, but the price was lower by 1/6 to 1/10 for sorbitol. In a randomized double-blind crossover trial, 30 patients were flat