In order to reestablish the correct balance in body fluids, you should replace the correct amount of sugars and electrolytes that are lost. The best oral replacement therapy drink will comprise of a compilation of sodium, potassium, starch or glucose. There are an enormous amount of OH drinks available. The best one will be the one that replenish your body with all the required electrolytes and fluids in the shortest possible time. SOS Hydration is a concentrated hydration booster with electrolytes which helps hydrate you faster and more effectively.