Prescription
Electrolyte supplement (mineral supplement)
Potassium chloride
Last reviewed April 2026
Who is this for?
What is this drug?
Potassium chloride is a mineral supplement that replaces potassium in your body when your levels are too low, helping your heart, muscles, and nerves work properly.
What is it used for?
Low potassium levels (hypokalemia)potassium loss from diarrhea or vomitingpotassium loss caused by water tablets (diuretics)muscle weakness or cramps due to low potassium
Prescription Required
A doctor's prescription is required to obtain this drug legally.