Comparative Pharmacology
Head-to-head clinical analysis: OSMITROL 20 IN WATER versus SORBITOL MANNITOL.
Peer-Reviewed Evidence
Head-to-head clinical analysis: OSMITROL 20 IN WATER versus SORBITOL MANNITOL.
OSMITROL 20% IN WATER vs SORBITOL-MANNITOL
Comparing the clinical profiles, pharmacokinetic behaviors, and safety indices of these two therapeutic agents.
Osmotic diuretic that increases plasma osmolality, drawing water from intracellular spaces into extracellular fluid and increasing renal tubular osmotic pressure, which inhibits water reabsorption and promotes diuresis.
Sorbitol and mannitol are sugar alcohols that act as osmotic diuretics. They are filtered by the glomerulus but not reabsorbed, increasing osmotic pressure in the tubular lumen, thereby reducing water reabsorption and promoting diuresis. They also increase intraocular pressure and decrease intracranial pressure by drawing water from tissues into the bloodstream.
1-2 g/kg (5-10 mL/kg of 20% solution) intravenously over 30-60 minutes for reduction of intracranial pressure; may repeat every 6-8 hours. For preoperative bowel preparation, 100-200 mL (20% solution) orally.
Osmotic diuretic; 50-100 g (as 25% solution) IV over 30-60 minutes, may repeat every 6-12 hours as needed; maximum 200 g/day.
None Documented
None Documented
0.25–1.5 hours (15–90 minutes) in patients with normal renal function. In oliguric or anuric patients, half-life is markedly prolonged, up to 36 hours, due to reduced clearance.
Terminal elimination half-life is approximately 4-6 hours; may be prolonged in renal impairment.
Primarily renal excretion as unchanged drug. Over 90% of administered dose is excreted unchanged in urine within 24 hours. Less than 5% is metabolized in the liver; negligible biliary/fecal elimination.
Primarily renal excretion as unchanged drug; >90% eliminated via urine within 24 hours.
Category C
Category A/B
Osmotic Diuretic
Osmotic Diuretic