Potassium is a mineral that is found in many foods and is needed for several functions of your body, especially the beating of your heart. Potassium chloride is used to prevent or to treat low blood levels of potassium (hypokalemia). Potassium levels can be low as a result of a disease or from taking certain medicines, or after a prolonged illness with diarrhea or vomiting. Potassium chloride may also be used for purposes not listed in this medication guide.
Micro-K is a uniquely formulated drug that contains potassium chloride in tiny, encrusted capsules that are designed to release the potassium slowly throughout the digestive tract. Micro-K is used to treat individuals with low potassium levels brought about by many disease states and toxicity due to digitalis. It is also used to treat people with a condition known as hypokalemic familial periodic paralysis.