Oral mannitol in control of fluid balance

Abstract

Oral mannitol 40 g/m2 was given as 5.5% and 20% solutions to six dialysed children. Both solutions caused diarrhoea. Body weight showed no significant change after the 5.5% solution, which may be used as a 'free drink', but fell by 19.8 g/g mannitol after the 20% solution.