Indications Indicated for patients with more severe conditions such as heart, kidney, ascites, edema, hypertension and pre-eclampsia with various causes of water and sodium retention. Dietary principles 1.Usually only short-term use. 2.Observe patients’ blood sodium during use to prevent hyponatremia. 3. Salt, salt-containing condiments and salt-cured foods, such as salted eggs, salted meat, ham and salted vegetables, curd and preserved foods, are prohibited in the course of meal preparation. 4, in addition to prohibit salt, also prohibit the addition of alkaline food, such as alkaline steamed buns, noodles, baking powder made of snacks; all food throughout the day containing sodium at about 1000mg.