Activation of psychosis has occasionally been observed in patients with schizophrenia receiving tricyclic antidepressants. The study began a 5-week, open-label, dose-optimization trial. For children, 50 units of heparin per 100 mL of dialysis fluid has been recommended (Irwin et al Medicine online. Thiazides may cause significant dose-related hypokalemia and dilutional hyponatremia.