IT IS USUALLY ADMINISTERED APPROX. 3.35 GM /5ML WITH GALACTOSE AND LACTOSE. CONSTIPATION :- 10 TO 20 GM DAILY IN SINGLE OR 2 DIVIDED DOSES UP TO 40 GM DAILY. CHILDREN 5-10 YRARS :- 5-10 ML, 1-5 YEARS 5 ML, AND UNDER 1 YEAR, 2.5 ML TWICE DAILY. HEPATIC ENCEPHALOPATHY :- 60-120 GM (90-180 ML) DAILY IN 3 OR 4 DIVIDED DOSES. INITIALLY 20 TO 30 GM (30 TO 45 ML) GIVEN EVERY 1-2 HOURS.
LACTULOSE SOLUTION 300 ML MIXED WITH 700 ML OF WATER OR SODIUM CHLORIDE 0.9% HAS BEEN USED AS A RETENTION ENEMA; THE ENEMA IS RETAINED FOR 30 TO 60 MINUTES, REPEATED EVERY 4 TO 6 HOURS UNTIL THE PATIENT IS ABLE TO TAKE ORAL MEDICATION.