glucose monohydrate + sodium chloride: clinical use

Prescribing considerations

• Select the formulation according to fluid, sodium and carbohydrate requirements, glucose-handling capacity and clinical state.
• Account for concurrent intravenous nutrition and medicines affecting glucose or water balance.
• Use the lower-sodium selected formulation in children only in specialist paediatric settings under expert supervision.
• Correct pre-existing thiamine deficiency before giving glucose-containing solutions where relevant.
• Verify compatibility, stability and tonicity before introducing an additive.

Contraindications and cautions

• Lower-sodium selected product: hypersensitivity; extracellular hyperhydration or hypervolaemia; fluid and sodium retention; severe renal impairment with oliguria or anuria; uncompensated heart failure; hyponatraemia or hypochloraemia; general oedema; ascitic cirrhosis; clinically significant hyperglycaemia; uncompensated diabetes, other significant glucose intolerance, hyperosmolar coma or hyperlactataemia.
• Higher-sodium selected product: hyperhydration, hypotonic dehydration, acute ischaemic stroke and the early period after head trauma.
• Use caution with renal, cardiac or hepatic disease, impaired glucose tolerance, sodium-retaining states, severe malnutrition, electrolyte disturbances or increased vasopressin activity.

Monitoring

• Assess fluid balance, urine output, serum glucose, sodium, potassium and other electrolytes.
• Consider acid–base status and signs of dehydration, congestion, osmotic diuresis or neurological deterioration.
• Monitor particularly closely in children, newborns, acutely ill or postoperative patients and people receiving vasopressin-enhancing medicines.

Clinical pharmacology

These are hypotonic sodium chloride solutions containing glucose. Sodium and chloride distribute mainly extracellularly; glucose is metabolised for energy. Rapid glucose metabolism increases the physiologically hypotonic water load, while glucose utilisation can increase potassium requirements.

Formulation and product differences

• The selected products contain different sodium and glucose concentrations and are not interchangeable without assessing the intended fluid and electrolyte effect.
• The lower-sodium product is licensed for dehydration with moderate sodium and chloride loss and has specialist restrictions for paediatric use.
• The higher-sodium product is additionally licensed for hypertonic dehydration, partial energy coverage and use as a vehicle for compatible additives.
• Container materials, additive compatibility and product-specific contraindications differ.