Low potassium levels, also called hypokalemia, can affect people of all ages. Sometimes the condition is the result of a temporary condition--for example, if you perspire a lot during sports or intense exercise and you don't replace the water you've lost.
Diarrhea in infants. Children who have diarrhea may have less energy, dry eyes, or a dry, sticky mouth. They may also not wet their diaper as often as usual. Give your child fluids for the first 4 to 6 hours. At first, try 1 ounce (2 tablespoons) of fluid every 30 to 60 minutes. If you are nursing, keep breastfeeding your infant. If you are using formula, use it at half strength for 2 to 3 feedings after the diarrhea starts. Then begin regular formula feedings again.
You can slowly get large amounts of fluids into children with these products. You may also give your child watered-down fruit juice or broth. DO NOT use medicines to slow down your child's diarrhea without talking to a doctor first. Ask your child's health care provider if using sports drinks is OK.