Comparative Pharmacology
Head-to-head clinical analysis: DEXTROSE 5 AND SODIUM CHLORIDE 0 45 IN PLASTIC CONTAINER versus MAGNESIUM SULFATE IN PLASTIC CONTAINER.
Peer-Reviewed Evidence
Head-to-head clinical analysis: DEXTROSE 5 AND SODIUM CHLORIDE 0 45 IN PLASTIC CONTAINER versus MAGNESIUM SULFATE IN PLASTIC CONTAINER.
DEXTROSE 5% AND SODIUM CHLORIDE 0.45% IN PLASTIC CONTAINER vs MAGNESIUM SULFATE IN PLASTIC CONTAINER
Comparing the clinical profiles, pharmacokinetic behaviors, and safety indices of these two therapeutic agents.
Dextrose (glucose) is a monosaccharide that serves as a substrate for cellular metabolism, providing energy and restoring blood glucose levels. Sodium chloride (0.45%) provides electrolytes and helps maintain osmolality; the hypotonic solution replaces fluid and electrolytes.
Magnesium sulfate causes decreased release of acetylcholine at the neuromuscular junction, reducing muscle contractility. It also blocks calcium channels, leading to vasodilation and anticonvulsant effects.
Intravenous infusion; dose depends on fluid and electrolyte needs. Typical adult rate: 100-200 mL/hour (2-4 mL/kg/hour) for maintenance. Maximum infusion rate: 25 mL/kg/hour. Not to exceed 50 mL/kg/24 hours.
IV: 1-4 g as a 10-20% solution, rate not exceeding 1 g/min; for eclampsia: 4-5 g IV bolus then 1-2 g/hour IV infusion.
None Documented
None Documented
The terminal half-life of infused dextrose is not applicable as glucose is rapidly metabolized; however, exogenous glucose infusion is cleared with a half-life of approximately 15-30 minutes due to insulin-mediated uptake. Sodium and chloride have no defined elimination half-life as they are homeostatically regulated.
Normal renal function: 4–6 hours (terminal). In oliguria or anuria, half-life may extend to >24 hours, requiring dose adjustment.
Dextrose is completely metabolized to carbon dioxide and water, with negligible renal excretion of intact glucose under normal conditions. Sodium and chloride are freely filtered by the glomerulus and undergo variable tubular reabsorption; excess is excreted renally. No biliary or fecal elimination.
Primarily renal (glomerular filtration); >90% excreted unchanged in urine. Biliary/fecal elimination is negligible (<1%).
Category A/B
Category C
Electrolyte
Electrolyte