NSN# 6505-01-197-8809. This is their orginal formula. To see an alternate formula see ASIN:B00DWBYVWM. * Required treatment for severe diarrhea or other illnesses where dehydration is a problem. These rehydration salts, made from the standard World Health Organization formula, should be a part of every travel kit, particularly for those traveling with children or in Third World countries. * The combination of salt (as Sodium Chloride, 3.5 g. and Trisodium Citrate, Dihydrate, 2.9 g.), potassium (as Potassium Chloride, 1.5 g.) and glucose (Anhydrous, 20 g.) enhances the ability of the large intestine to absorb fluids. Includes instructions. * Directions for use: dissolve in 1 liter of drinking water. Good for three years from date of manufacture. * SOLD IN EACHES- See Additonal Information below