Sodium Chloride 0.9% w/v is a sterile, non-pyrogenic, isotonic solution of sodium chloride in water for injection. It is a fundamental crystalloid intravenous (IV) fluid and the most common intravenous solution used in clinical practice. It is isotonic with human blood plasma (approximately 308 mOsm/L) and serves as a vehicle for fluid resuscitation, electrolyte replacement, and as a diluent for various parenteral medications. It is considered a volume expander in the intravascular compartment.
Adult: Highly individualized based on patient's age, weight, clinical condition, and fluid/electrolyte status. For resuscitation: 500-3000 mL rapidly. For maintenance: 1.5-3.0 L/24 hours (approx. 30 mL/kg/day). Maximum rate of administration should not exceed 25 mL/kg in the first hour without close monitoring.
Note: For intravenous use only. Must be sterile. Use aseptic technique. Check for clarity and container integrity before use. Can be administered via peripheral or central line. Infusion rate must be prescribed by a physician based on clinical need. Do not administer if solution is cloudy or contains particulates.
Sodium Chloride 0.9% provides sodium and chloride ions, which are the principal extracellular electrolytes. When administered intravenously, it expands the intravascular fluid volume by increasing plasma osmolality, drawing water from the interstitial and intracellular compartments into the vascular space. It corrects sodium and chloride deficits. Its isotonic nature minimizes osmotic red cell damage (hemolysis).
Pregnancy: US FDA Pregnancy Category C (Indian classification: Category C). Should be used during pregnancy only if clearly needed. No known teratogenic risk, but maternal fluid overload can compromise placental perfusion.
Driving: No effect on ability to drive or operate machinery.
| Corticosteroids (e.g., Prednisolone, Hydrocortisone) | Increased sodium retention, potentiating risk of edema and hypertension. | Moderate |
| Lithium | Increased sodium excretion may reduce lithium clearance, increasing risk of lithium toxicity. Conversely, sodium chloride infusion can enhance lithium excretion. | Major |
| Potassium-Sparing Diuretics (e.g., Spironolactone, Amiloride) | Concurrent use may lead to hyperkalemia, especially in renal impairment. | Moderate |
| ACE Inhibitors (e.g., Enalapril, Ramipril) / ARBs (e.g., Losartan) | May impair renal sodium excretion, increasing risk of hypernatremia and hyperkalemia. | Moderate |
Same composition (Sodium Chloride (0.9% w/v)), different brands: