Potassium citrate can be used to treat hypokalemia caused by various reasons, such as insufficient feeding, vomiting, severe diarrhea, application of potassium-excreting diuretics, hypokalemic familial periodic paralysis, long-term application of glucocorticosteroids, and supplementation of hypertonic glucose, etc.; 2. It can prevent hypokalemia, and preventive supplementation of potassium salts is needed when there is a potassium loss in the patient, especially when the occurrence of hypokalemia is more hazardous to the patient. Potassium salt, such as eating very little, severe or chronic diarrhea, long-term use of adrenocorticotropic hormone, potassium-losing nephropathy, etc.; C. This product can also be used for frequent, multiple premature beats or tachyarrhythmia caused by digitalis intoxication.