Good info thanksSave your money on the electrolyte packets. You can make your own from common kitchen items, and it won't cost you a penny. While this recipe calls for KCl, it can be made without it.:
WHO Oral Rehydration Solution
Table Salt (NaCl) 1/2 tsp.*
Salt Substitute (KCl) 1/2 tsp.*
Baking Soda 1/2 tsp.
Table Sugar 2 tablespoons
Tap Water 1 Liter (= 1 Qt. 2 tablespoons)
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NOTE: *Morton's Salt makes that is half NaCl (table salt) and half Potassium salt (KCl) and is called "Lite Salt" - if that is what your grocery store has, simply use 1 teaspoon of the the Lite Salt in place of of the table salt and potassium salt.
You can also do a google search for home made electrolyte or pedialyte solution with Koolaid or Jello if you want to make a flavored version for your own use.