Ready to use. Do not add water or dilute. Tastes best served cold. Usage: For infants under 1 year of age: Consult your doctor. For children 1 year of age and older and adults: Begin with small frequent sips every 15 minutes, increasing serving size as tolerated. Continue for as long as diarrhea is present. To help maintain proper hydration, 1-2 liters (32 to 64 fl oz) may be needed per day. Consult your doctor if vomiting, fever, or diarrhea continues beyond 24 hours or if consumption needs are greater than 2 liters (64 fl oz) per day. Do not use if printed band around cap or inner foil seal is missing or broken. Remove protective band and twist off cap. Remove and throw away protective foil seal. After opening, replace cap, refrigerate and use within 48 hours. Store unopened bottles in a cool place. Avoid excessive heat. Do not reuse bottle.