

Oral Rehydration Solution
OS-1 Series
OS-1 series are beverages that meet the oral rehydration therapy guidelines recommended by the World Health Organization (WHO). The composition of OS-1 is based on the guidelines of the American Academy of Pediatrics, which has promoted the use of oral rehydration therapy for persons who are dehydrated.
About OS-1
OS-1, OS-1 Apple Flavor



Approved labeling of OS-1, OS-1 Apple Flavor
OS-1 is an oral rehydration solution used in dietary therapy (oral rehydration therapy) for dehydration.
This product is approved as a food for persons with medical conditions and is intended to provide water and electrolytes in order to maintain proper water and electrolyte balance in persons with mild-to-moderate dehydration.
OS-1 can be used to prevent worsening of and aid in recovery from dehydration caused by the following conditions. OS-1 can also be used to provide or maintain water and electrolytes in the following conditions after recovery from dehydration.
- ・Diarrhea, vomiting, or fever associated with infectious enteritis or the common cold
- ・Insufficient oral intake in elderly persons
- ・Excessive perspiration
OS-1 can also be used for heatstroke associated with dehydration
Instructions for use of OS-1 and OS-1 Apple Flavor
OS-1 should be taken according to the following guidelines and intake adjusted based on the degree of dehydration.
- ・Older children and adults (including elderly adults): 500-1000 mL/day
- ・Young children: 300-600 mL/day
- ・Infants: per 1kg 30 ~50mL/day
OS-1 should be used as directed by a physician as a dietary therapy for dehydration. Consult a physician, pharmacist, nurse, registered dietitian, or registered salesperson before consuming OS-1. OS-1 is intended only for the dietary treatment of dehydration, not for the treatment of any underlying disease (even if a large volume is consumed).
Precautions for handling OS-1 and OS-1 Apple Flavor
Do not freeze the product. If the product is frozen, the contents may expand and
damage the container.
Promptly consume after opening the container. Leaving unconsumed product at room
temperature may result in damage of the container or propulsion of the cap.
Nutrition facts (per 100 mL) |
Calories 10 kcal, Protein 0 g, Fat 0 g, Carbohydrate 2.5 g, Salt equivalent 0.292g, Potassium 78 mg, Magnesium 2.4 mg, Phosphorous 6.2 mg | |
---|---|---|
Glucose 1.8 g, chloride 177 mg | ||
Concentrations of Main Ingredients | Na⁺50mEq/L, K⁺20mEq/L, Cl⁻50mEq/L, Glucose1.8% | |
Product category |
Beverage | |
Ingredients | OS-1 | Glucose(domestic manufacturing), Fructose, Salt/Citric acid (Na), Potassium chloride, Sodium phosphate, Magnesium chloride, Sweetener (sucralose), Natural flavors |
OS-1 Apple Flavor | Glucose (domestic manufacturing), Fructose, Salt/Citric acid (Na), Potassium chloride, Sodium phosphate, Magnesium chloride, Natural flavors Sweetener (sucralose) | |
Allergic substances (28 items) |
Not applicable | |
Volume | 500 mL, 300 mL | |
Best before date | 15 months after manufacturing date | |
Storage | Store in a cool place out of direct sunlight and high temperature. | |
Distributor | Otsuka Pharmaceutical Factory, Inc. | |
Manufacturing site | < Manufacturing site code:+MS > Maruzen Foods Corporation Suzaka Factory 4062-3, Ogawara, Suzaka-shi, Nagano < Manufacturing site code:+MO > Maruzen Foods Corporation Fujioyama Factory 884-1, Suganuma, Oyama-cho, Sunto-gun, Shizuoka < Manufacturing site code:+SO > Shinanokougen Foods Corporation Fujioyama Factory 1-1, Oyama Oyama-cho, Sunto-gun, Shizuoka |
OS-1 Jelly, OS-1 Jelly Apple Flavor




Approved labeling of OS-1 Jelly, OS-1 Jelly Apple Flavor
OS-1 Jelly is an oral rehydration solution used in dietary therapy (oral rehydration therapy) for dehydration.
This product is approved as a food for persons with medical conditions and is intended to provide water and electrolytes in order to maintain proper water and electrolyte balance in persons with mild-to-moderate dehydration.
OS-1 Jelly can be used to prevent worsening of and aid in recovery from dehydration caused by the following conditions. OS-1 Jelly Apple Flavor can also be used to provide or maintain water and electrolytes in the following conditions after recovery from dehydration.
- ・Diarrhea, vomiting, or fever associated with infectious enteritis or the common cold
- ・Insufficient oral intake in elderly persons
- ・Excessive perspiration
OS-1 Jelly can also be used for heatstroke associated with dehydration.
Although this product can be consumed by persons who have difficulty chewing or swallowing, a physician should be consulted before its use.
Instructions for use of OS-1 Jelly and OS-1 Jelly Apple Flavor
OS-1 Jelly should be taken according to the following guidelines and intake adjusted based on the degree of dehydration.
- ・Older children and adults (including elderly adults): 500-1000 g/day
- ・Young children: 300-600 g/day
- ・Infants: per 1kg 30~50 g/day
Use as directed by a physician as a dietary therapy for dehydration.
Consult a physician, pharmacist, nurse, registered dietitian, or registered salesperson before consuming OS-1 Jelly. OS-1 Jelly is intended only for the dietary treatment of dehydration, not for the treatment of any underlying disease (even if a large volume is consumed).
Precautions for handling OS-1 Jelly and OS-1 Jelly Apple Flavor
Do not freeze or heat OS-1 Jelly. If the product is frozen or heated, the jelly
may disintegrate.
Some water may be separated from the product depending on how the product is
stored and handled.
Be careful not to spill the contents when opening the container.
After opening the container, consume the appropriate amount of OS-1 Jelly
promptly. Store any unused product in the refrigerator. Make sure that cap is
properly resealed.
To avoid accidental swallowing, do not put cap into the mouth.
Nutrition facts (per 100 g) |
Calories 10 kcal, Protein 0 g, Fat 0 g, Carbohydrate 2.5 g, Salt equivalent 0.292g, Potassium 78 mg, Magnesium 2.4 mg, Phosphorous 6.2 mg | |
---|---|---|
Glucose 1.8 g, chloride 177 mg | ||
Concentrations of Main Ingredients | Na⁺50mEq/L, K⁺20mEq/L, Cl⁻50mEq/L, Glucose1.8% | |
Product category | Beverage (jelly) | |
Ingredients | OS-1 Jelly | Glucose(domestic manufacturing), Salt/Citric acid (Na), Thickener (polysaccharides), Potassium chloride, Sodium phosphate, Magnesium chloride, Sweetener (sucralose, acesulfame potassium), Natural flavors |
OS-1 Jelly Apple Flavor | Glucose(domestic manufacturing), Salt/Citric acid (Na), Thickener (polysaccharides), Potassium chloride, Sodium phosphate, Magnesium chloride, Natural flavors, Sweetener (sucralose, acesulfame potassium) | |
Allergic substances (28 items) |
Not applicable | |
Volume | 200 g | |
Best before date | 15 months after manufacturing date | |
Storage | Store in a cool place out of direct sunlight and high temperature. | |
Distributor | Otsuka Pharmaceutical Factory, Inc. |
OS-1 Powder




Approved labeling of OS-1 Powder
OS-1 powder is an oral rehydration solution used in dietary therapy (oral rehydration therapy) for dehydration.
This product is approved as a food for persons with medical conditions and is intended to provide water and electrolytes in order to maintain proper water and electrolyte balance in persons with mild to moderate dehydration.
OS-1 powder can be used to prevent worsening of and aid in recovery from dehydration caused by the following conditions. OS-1 powder can also be used to provide or maintain water and electrolytes in the following conditions after recovery from dehydration.
- ・Diarrhea, vomiting, or fever associated with infectious enteritis or the common cold
- ・Insufficient oral intake in elderly persons
- ・Excessive perspiration
OS-1 powder can also be used for heatstroke associated with dehydration.
Instructions for use
OS-1 should be taken according to the following guidelines and intake adjusted based on the degree of dehydration.
- ・Older children and adults (including elderly adults): 500-1000 mL/day
- ・Young children: 300-600 mL/day
- ・Infants: 30-50 mL/kg/day
OS-1 should be used as directed by a physician as a dietary therapy for dehydration. Consult a physician, pharmacist, nurse, registered dietitian, or registered salesperson before consuming OS-1. OS-1 is intended only for the dietary treatment of dehydration, not for the treatment of any underlying disease (even if a large volume is consumed).
Precautions for handling OS-1 Powder
This product is likely to absorb moisture. Use soon after opening.
After dissolving, this product should be stored in a refrigerator and consumed promptly.
When dissolving or storing this product, use a non-metal container.
Do not consume this product in powder form as is, or if prepared differently from the How to Use instructions.
Nutrition facts (Per1pouch/30 g, 1pouch/15 g) |
1pouch (30 g) |
Calories 102 kcal, Protein 0 g, Fat 0 g, Carbohydrate 25.4 g, Salt equivalent 2.97g, Potassium 794 mg, Magnesium 25 mg, Phosphorous 63 mg |
---|---|---|
Glucose 18.3 g, chloride 1801 mg | ||
1pouch (15 g) |
Calories 51 kcal, Protein 0 g, Fat 0 g, Carbohydrate 12.7 g, Salt equivalent 1.485g, Potassium 397 mg, Magnesium 12.5 mg, Phosphorous 31.5 mg | |
Glucose 9.15 g, chloride 900.5 mg | ||
Concentrations of Main Ingredients | Na⁺50mEq/L, K⁺20mEq/L, Cl⁻50mEq/L, Glucose1.8% | |
Product category | Beverage:Powdered beveragee | |
Ingredients | Glucose(domestic manufacturing), Fructose:Maltodextrin, Salt/Citric acid (Na), Potassium chloride, Sodium phosphate, Thickening agent(Pullulan), Magnesium chloride:Magnesium carbonate, Sweetener (sucralose, Thaumatin), Natural flavors | |
Allergic substances (28 items) |
Not applicable | |
Volume | 30g(for 1L), 15g(for 500mL) | |
Best before date | 5 years and 6 months after manufacturing date | |
Storage | Store in a cool place out of direct sunlight and high temperature. | |
Distributor | Otsuka Pharmaceutical Factory, Inc. |