Multibic (Sodium Hydrogen Carbonate, Magnesium Chloride Hexahydrate, Sodium Chloride, Calcium Chloride Dihydra)

Multibic is used as an electrolyte solution in the haemodialysis pathway to support fluid and electrolyte management.

• Dialysis fluid for haemodialysis: provides necessary electrolytes and buffering to maintain patient acid‑base balance during treatment.
• Intravenous electrolyte replacement: restores electrolyte concentrations in patients with deficits during acute care.
• Acid‑base management in renal replacement therapy: helps correct metabolic acidosis during dialysis sessions.

• Multibic delivers sodium, magnesium, calcium and chloride ions together with bicarbonate, which together replenish extracellular electrolytes and provide buffering capacity. The bicarbonate component helps neutralize excess hydrogen ions, supporting acid‑base homeostasis, while the mineral ions maintain osmotic balance and cellular function during haemodialysis or intravenous electrolyte therapy.

Multibic may be associated with infusion‑related reactions and electrolyte disturbances.

Common Side Effects

• Hypotension: transient drop in blood pressure during infusion.
• Nausea: mild gastrointestinal discomfort.
• Vomiting: occasional emesis post‑infusion.
• Headache: mild to moderate headache.

Serious or Rare Side Effects

• Severe hyperkalemia: dangerous rise in serum potassium.
• Metabolic alkalosis: excessive bicarbonate leading to high pH.
• Anaphylactic reaction: rare severe allergic response.
• Cardiac arrhythmia: caused by significant electrolyte imbalance.

When using Multibic, clinicians should observe several safety measures.

• Baseline assessment: evaluate patient electrolyte levels before initiation.
• Blood pressure monitoring: watch for hypotension during infusion.
• Cardiac risk: adjust composition for patients with known cardiac disease.
• Hypernatremia avoidance: do not use in patients with severe high sodium levels.
• Aseptic technique: maintain sterility to prevent contamination.
• Store at ambient temperature: keep in original container, protect from light and moisture.

Multibic can interact with other agents that affect electrolyte balance.

Major Interactions (Avoid)

• High‑dose calcium supplements: may cause hypercalcemia.
• Potassium‑sparing diuretics: increased risk of hyperkalemia.
• Additional bicarbonate‑containing solutions: may precipitate metabolic alkalosis.

Moderate Interactions (Monitor Closely)

• Nephrotoxic IV antibiotics: monitor renal function and electrolytes.
• Blood transfusions: watch for shifts in electrolyte concentrations.
• Concurrent insulin therapy: monitor potassium levels closely.