IV hydration is the practice of administering fluids and electrolytes directly into a person’s vein via an IV drip. It is commonly used to combat fatigue, dehydration, or as a hangover remedy. With IV hydration therapy, clients receive fluids quickly and in much higher volumes than they would be able to consume through drinking alone. This method of rehydration helps people recover more rapidly from illness, allowing them to return to work, school or their daily activities sooner.