患儿,男,6 20/30月,因腹泻5个月就诊。患儿生后35天因便秘而服导泻剂后腹泻至今。大便为黄色稀便,每天3～10次不等。经反复输液、庆大霉素、氟哌酸、复方 苯乙哌啶等治疗无效改用泻痢停1/4片每日3次口服,5d后泻止,但停药后又泻,病程中家长自行将剂量加至1片,每日3次口服,至就诊前服药4月余。查体:神清,前囟轻度凹陷,口干,心肺无异常。腹软,神经系 Children, male, 6 20/30 months, due to diarrhea 5 months treatment. 35 days after birth due to constipation and taking diarrhea after diarrhea so far. Stool is loose stools, 3 to 10 times a day. After repeated infusion, gentamicin, norfloxacin, diphenhydramine and other treatment ineffective use diarrhea stopped 1/4 tablets 3 times daily oral, 5d after diarrhea, but after stopping and diarrhea, the course of disease Parents to their own dose will be added to 1, 3 times daily oral administration, to the medication more than 4 months before treatment. Physical examination: God clear, mild depression before the skull, dry mouth, no abnormal heart and lung. Abdomen soft, nervous system