The OS-1 series is an **oral rehydration solution** used for dietary therapy in cases of dehydration. It is a **medical food** suitable for the replenishment and maintenance of water and electrolytes in mild to moderate dehydration. This beverage is based on the oral rehydration therapy principles advocated by the World Health Organization (WHO). Please use it for the **prevention of worsening dehydration**, **recovery**, and **replenishment and maintenance of water and electrolytes after recovery** caused by the following conditions: ■ **Infectious enteritis, diarrhea, vomiting, and fever due to colds** ■ **Insufficient oral intake in the elderly** ■ **Excessive sweating** Also, please use it for **heat stroke accompanied by dehydration**.