https://www.childrensmercy.org/health-care-providers/evidence-based-practice/cpgs-cpms-and-eras-pathways/seizure-first-nonfebrile-management-in-the-ed-and-ucc-clinical-practice-guideline/seizure-rescue-medications/
Medication. Dosing ; Diazepam, rectal. (DiaStat). 6 - 11 months: 2.5 mg; 1 - 5 years: 0.5 mg/kg; 6 - 11 years: 0.3 mg/kg; > 12 years: 0.2 mg/kg.