用药不慎可引起消化性营养不良。有些药物作用于肠道,阻滞了食物的消化和吸收的正常功能,导致脂肪性腹泻、蛋白丢失、维生素缺乏、水盐代谢紊乱等。如新霉素有使胆盐沉淀及抑制脂肪分解的作用,若连续每日口服3克以上,一周以上大便中的脂类、氮素、钾、钠排出增加,维生素B_(12)、铁、糖等吸收减少;秋水仙碱、氨甲喋呤等影响小肠上皮细胞的分裂和再生,而致肠道吸收不良;降脂剂如消胆胺等与胆酸融合,影 Inadvertent medication can cause digestive malnutrition. Some drugs act on the intestine, blocking the normal function of food digestion and absorption, leading to fatty diarrhea, protein loss, vitamin deficiency, water and salt metabolism disorders. Such as neomycin bile salt precipitation and inhibit the role of lipolysis, if more than 3 grams per day continuous oral, more than a week of stool in the lipid, nitrogen, potassium and sodium excretion increased, vitamin B 12, iron, Sugar and other absorption decreased; colchicine, methotrexate affect the intestinal epithelial cell division and regeneration, resulting in intestinal malabsorption; lipid lowering agents such as cholestyramine and cholic acid fusion