Potassium is a mineral that can be found naturally in various foods and is necessary for the body to perform many functions, including heartbeat. Potassium gluconate is used to avoid or treat potassium deficiency in the blood (hypokalemia). Potassium levels can drop due to disease, taking certain medications, or prolonged diarrhea or vomiting. Potassium is needed by your body to transmit nerve impulses, stimulate muscles, and maintain the proper fluid balance. It’s significant for keeping your heartbeat in control.