background and objective: to assess the effectiveness and safety of oral amiloride for the treatment of edema in pediatric patients with idiopathic nephrotic syndrome. methods: a randomized trial of amiloride vs hydrochlorthiazide was done in 34 patients. the mean age was 4.3±0.7 years old. after a 2 week washout of diuretic therapy, nephrotic children with edema were randomized into two groups...