Potassium supplement are used to increase the amount of potassium in your body. Having the right amount of potassium in your body is important for the working of your heart, kidneys, liver, muscles and nerves.
Most people get enough potassium by eating a balanced diet. However, some conditions may lower your potassium levels, such as ongoing diarrhoea and vomiting, hormone problems (such as hyperaldosteronism) and medications such as diuretics (water pills), or corticosteroids.
In New Zealand, potassium supplements are available as tablets or can be given as an injection in the hospital.