Patient description: A 34 year old man comes to the clinic complaining of dizziness and severe diarrhea since yesterday. He has returned from an international trip few days ago and was living in a camp in Sudan for a month. He developed abdominal pain followed by bloating and nausea as well as loose bowel movements. Soon he was having profuse watery diarrhea without odor. The stool is watery and white but the patient has no fever. Blood pressure is 95/62 lying down and drops to 75/40 standing. The skin turgor has reduced. HR is 110 and he looks ill with dry mucosa. V. cholerae was seen in dark-field microscopy of a fresh stool specimen. The lab study is as bellow: Sodium 137 meq/L Potassium 2 meq/L Chloride 94meq/L CO2 15 meq/L Fecal leukocytes None seen Fecal occult blood Negative

Clinical trial eligibility criteria: eligible ages (years): 0.5-10.0,  Dehydration Gastroenteritis AGE (etiology: viral or other) resulting in presentation to the ED deemed in need of IV rehydration. In the 24 hours prior to presentation, the subject experienced at least 3 episodes of diarrhea (loose and/or watery stools) and/or nonbilious vomiting. 2. Moderate to severe dehydration (as assessed by Gorelick score13 ≥ 4 3. ≥ 6 months to < 11 years of age. 4. Healthy except for the underlying etiology of AGE. 5. Institutional Review Board (IRB)/Independent Ethics Committee (IEC)-approved written ICFs and privacy language per national regulations (eg, Health Insurance Portability and Accountability Act [HIPAA], Personal Information Protection and Electronic Documents Act [PIPEDA]) were obtained from the parent/guardian prior to any study-related procedures  AGE that did not require IV rehydration per the clinician. 2. Gorelick score ≤ 3 3. Bilious vomiting. 4. Received > 20 mL/kg IV fluid bolus within the 4 hours prior to study enrollment (ie, Hour -4 to Hour 0). 5. Diarrhea lasting > 7 days prior to presentation to the ED. 6. Chronic vomiting disorder. 7. Grossly bloody diarrhea. 8. Chronic diarrheal disorder. 9. Known hyponatremia (sodium < 130 mmol/L [< 130 mEq/L]) within 72 hours prior to enrollment. 10. Known hypernatremia (sodium > 155 mmol/L [> 155 mEq/L]) within 72 hours prior to enrollment. 11. Known hypokalemia (potassium < 3.0 mmol/L [< 3.0 mEq/L]) within 72 hours prior to enrollment. 12. Known hyperkalemia (potassium > 5.5 mmol/L [> 5.5 mEq/L]) within 72 hours prior to enrollment. 13. The use of prohibited medications Antacids within 24 hours prior to presentation to the ED and during the study Anti-diarrhea medication within 24 hours prior to presentation to the ED and during the study The systemic use of corticosteroids/corticotropins was prohibited within 72 hours of enrollment. 14. Chronic health condition affecting the ability to tolerate fluids or those that result in electrolyte abnormalities (eg, chronic renal, cardiac, or pulmonary diagnoses), or abnormalities of sodium or potassium handling (eg, endocrine disorders, medications). 15. Any reason for urgent or emergency hospital admission or ED stays of > 12 hours within 14 days preceding presentation to the ED. 16. Any medical condition likely to interfere with the subject's ability to fully complete all protocol-specified interventions, the ability to undergo all protocol-specified assessments, or likely to prolong the subject's need for medical attention beyond that required for treatment of dehydration. 17. Participation in a study of any investigational drug or device concomitantly or within 30 days prior to enrollment in this study, including previous enrollment in this study. 18. Subject with a > 50% expected chance of dying within 6 months, in the Investigator's opinion. 19. Known hypersensitivity to either of the investigational products. 20. Other serious acute or active conditions that, in the Investigator's opinion, precluded participation in this study