Mannitol Viaflo Baxter (Mannitol)

Mannitol is used in clinical situations that require osmotic diuresis or reduction of intracranial pressure.

• Intracranial hypertension: lowers elevated intracranial pressure by drawing fluid from brain tissue.
• Acute kidney injury: provides renal protection by promoting osmotic diuresis and improving renal perfusion.
• Oliguric states: induces diuresis to increase urine output in patients with low urine production.

• Mannitol increases extracellular osmolarity after intravenous administration, creating an osmotic gradient that draws water from intracellular and interstitial compartments into the vascular space. This shift promotes renal excretion of water and electrolytes, producing diuresis, and reduces cerebral edema by decreasing intracranial fluid volume.

Mannitol may cause a range of adverse reactions, from mild to severe.

Common Side Effects

• Headache: mild to moderate discomfort.
• Nausea or vomiting: gastrointestinal upset.
• Thirst or dry mouth: due to osmotic effect.
• Electrolyte imbalance: especially hyponatremia or hypokalemia.
• Transient tachycardia: increased heart rate.
• Mild hypotension: due to rapid fluid shifts.

Serious or Rare Side Effects

• Pulmonary edema: fluid accumulation in lungs.
• Severe electrolyte disturbances: hypernatremia, hyperkalemia.
• Anaphylactoid reaction: rash, bronchospasm, hypotension.
• Acute renal failure: worsening kidney function.
• Cardiac arrhythmia: irregular heart rhythm.
• Hemolysis: destruction of red blood cells.

Mannitol administration requires careful monitoring and specific safety measures.

• Renal function: monitor serum electrolytes and renal parameters during therapy.
• Intracranial pressure: use cautiously in patients with compromised cerebral perfusion.
• Cardiovascular status: avoid rapid infusion in patients with heart failure.
• Pregnancy: use only if potential benefits outweigh potential risks.
• Allergy: discontinue immediately if hypersensitivity signs appear.
• Store at 2-8°C: keep refrigerated, protect from light, do not freeze or shake.

Mannitol can interact with several drug classes, requiring attention to dosing and monitoring.

Major Interactions (Avoid)

• Loop diuretics: may cause excessive fluid loss and electrolyte imbalance.
• Insulin: osmotic diuresis can alter glucose control, requiring dose adjustment.
• Nephrotoxic agents: increased risk of renal impairment.

Moderate Interactions (Monitor Closely)

• ACE inhibitors: additive effect on renal function, monitor creatinine.
• NSAIDs: may blunt diuretic response.
• Antihypertensives: may enhance hypotensive effect.