No. 1 pharmacist & pediatrician recommended brand for hydration. Preactiv prebiotics. Trusted by doctors and hospitals since 1966. Pedialyte is designed to prevent dehydration (For mild to moderate dehydration) more effectively than common beverages. 33% more electrolytes (60 mEq sodium electrolyes per liter vs 45 mEq in original Pedialyte) to help replenish higher electrolyte losses. Pedialyte Advance Care Plus quickly replenishes fluids, zinc, and electrolytes to help prevent dehydration due to: Vomiting & diarrhea; heat exhaustion; intense exercise; travel. Advanced Rehydration: Pedialyte AdvancedCare+: Replenishes electrolytes; Replenishes zinc; PreActiv prebiotics; 33% more electrolytes (60 mEq sodium electrolyes per liter vs 45 mEq in original Pedialyte). Designed for fast, effective rehydration.