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OS-1 is useful for mild to moderate dehydration,
and heatstroke associated with dehydration
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.

OS-1

Approved labeling of OS-1

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

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

  • 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 Glucose(domestic manufacturing), Fructose, Salt/Citric acid (Na), Potassium chloride, Sodium phosphate, Magnesium chloride, Sweetener (sucralose), Natural flavors
Allergic substances
(28 items)
Not applicable
Volume 500 mL, 280 mL
Best before date 500mL:15 months after manufacturing date
280mL:12 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 is managed in the same way as foods that meet the standards for babies.

Click here to buy the product
(available only on the Japanese site)

OS-1Jelly

Approved labeling of OS-1 Jelly

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 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

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: 30-50 g/kg/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

  • 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 Glucose (domestic manufacturing), Salt/Citric acid (Na), Thickener (polysaccharides), Potassium chloride, Sodium phosphate, Magnesium chloride, Sweetener (sucralose, acesulfame potassium), Natural flavors
Allergic substances
(28 items)
Not applicable
Volume 200 g
Best before date 12 months after manufacturing date
Storage Store in a cool place out of direct sunlight and high temperature.
Distributor Otsuka Pharmaceutical Factory, Inc.
Manufacturing site Maruzen Foods Corporation
880, Jakumaku, Chikuma-shi, Nagano

OS-1 Jelly is managed in the same way as foods that meet the standards for babies.

Click here to buy the product
(available only on the Japanese site)