Compound sodium chloride is a kind of medicine to replenish body fluids and regulate water and electrolyte balance. It contains water for injection, Na and Cl ions and a small amount of K and Ca ions. Na and Cl are important electrolytes in the body, mainly in extracellular fluid, and play a very important role in maintaining the normal volume and osmotic pressure of blood and extracellular fluid in the human body. Normal blood Na concentration is 135-145mmol /L, accounting for 92% of plasma cations and 90% of total osmotic pressure, so plasma Na plays a decisive role in osmotic pressure. The normal serum Cl concentration was 98~106mmol/L. The body mainly regulates through hypothalamus, posterior pituitary and kidney to maintain the stability of fluid volume and osmotic pressure.

Specification：? ??500ml：Sodium Chloride 4.25g , ?Sodium Potassium 0.15g and Sodium Calcium ?0.165g.