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OS-1 is useful for dehydration
due to diarrhea, vomiting, or fever
associated with infectious
enteritis or the common cold.
Oral Rehydration Solution OS-1 Series

OS-1 and OS-1 Jelly 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 that contains carbohydrates and electrolytes in balanced concentrations. 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. Specifically, OS-1 is useful for dehydration due to diarrhea, vomiting, or fever associated with infectious enteritis or the common cold, as well as for dehydration resulting from insufficient oral intake in elderly persons or excessive perspiration.

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 only as directed by a physician as a dietary therapy for dehydration. Consult a physician, pharmacist, nurse, or dietitian 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 0.292 g, potassium 78 mg, magnesium 2.4 mg, phosphorous 6.2 mg
Glucose 1.8 g, chloride 177 mg
Product category Beverage
Ingredients/ Additives Carbohydrates (glucose, fructose), salt/Citric acid (Na), potassium chloride, sodium phosphate, magnesium chloride, sweetener (sucralose), and natural flavors
Volume 280 mL, 500 mL
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 < Manufacturing site code:OMS or +MS >
Maruzen Foods Corporation Suzaka Factory
4062-3, Ogawara, Suzaka-shi, Nagano
< Manufacturing site code:OMO or +MO >
Maruzen Foods Corporation Fujioyama Factory
884-1, Suganuma, Oyama-cho, Sunto-gun, Shizuoka

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 in jelly form that contains carbohydrates and electrolytes in balanced concentrations. This product is approved as a food for persons with medical conditions and is intended to provide water and electrolytes in order to maintain the proper water and electrolyte balance in persons with mild-to-moderate dehydration.
Specifically, OS-1 Jelly is useful for dehydration due to diarrhea, vomiting, or fever associated with infectious enteritis or the common cold, as well as for dehydration resulting from insufficient oral intake in elderly persons or excessive perspiration. 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 only as directed by a physician as a dietary therapy for dehydration.
Consult a physician, pharmacist, nurse, or dietitian 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 and ring into the mouth.
Nutrition facts
(per 100 g)
Calories 10 kcal, protein 0 g, fat 0 g, carbohydrate 2.5 g, salt equivalent 0.292 g, potassium 78 mg, magnesium 2.4 mg, phosphorous 6.2 mg
Glucose 1.8 g, chloride 177 mg
Product category Beverage (jelly)
Ingredients/Additives Glucose, salt/Citric acid (Na), thickener (polysaccharides), potassium chloride, sodium phosphate, magnesium chloride, sweetener (sucralose, acesulfame potassium), and natural flavors
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

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