 [ Symptoms ] in general will a regiment of 10 oz of potassium citrate over a 3 day period clear the bowel tract in a 5 year old our granddaughter has been on a regiment of 17 grams of miralax and 5 grams fiber per day on fri her bowel tract was found to be backed up doctor ordered 2 12 oz potassium citrate fri pm sat am  pm and sun am total 10 liquid oz mon an x ray was done and still showed no improvement question if medication was given following doctors orders should blockage have corrected or at the least shown improvement [ Disease ] i think you mean magnesium citrate not potassium magnesium citrate is a good catharticlaxative and should clean like a tornado so she will need to be in close proximity to a toilet for sure do not send her to kindergarten there are only a few wasy to clear a bowel impaction and this is one of them cleansing enemas are another using mineral oil may be tried the last resort however one that no one likes to do would be surgery but do not worry this is not likely to come to this hopefully she is seeing a good pediatric gastroenterologist to get to the bottom of this problem