Disclosed is an oral antidiarrheal 
powder for treating 
diarrhea occurring on infants, which is composed by the method that 2.5 portions to 3.12 portions of indomethacin, 1 portion to 1.25 portions of 
anisodamine, 2.5 portions to 3.12 portions of 
chlorpromazine and 992.51 portions to 994 portions of 
glucose powder are well mixed to reach enough amount together with the 
glucose powder with the equivalently increasing method, and are split charged in each packet for 1000 mg. Based on the modern medical theories, the invention is a compound 
oral administration preparation, which has the advantages of scientific and reasonable composing prescriptions,stable formulation,convenient using in clinic, definite pharmacological effects, fast symptom controlling, 
short course of treatment, little side-effect, 
sweet taste, small taken dosage, convenience and safety, and thus the invention is a safe and effective auxiliary therapy 
reagent for treating various diarrheas occurring on infants, particularly the diarrheas in spring and autumn. With low price, fast effect, short treatment cycle and good 
therapeutic effect whether for the infectious 
diarrhea or the non-infectious 
diarrhea, the invention is an effective preparation for treating diarrhea in clinic.