Comparative Pharmacology
Head-to-head clinical analysis: DEXTROSE 5 SODIUM CHLORIDE 0 2 AND POTASSIUM CHLORIDE 0 15 IN PLASTIC CONTAINER versus MAGNESIUM SULFATE IN DEXTROSE 5 IN PLASTIC CONTAINER.
Peer-Reviewed Evidence
Head-to-head clinical analysis: DEXTROSE 5 SODIUM CHLORIDE 0 2 AND POTASSIUM CHLORIDE 0 15 IN PLASTIC CONTAINER versus MAGNESIUM SULFATE IN DEXTROSE 5 IN PLASTIC CONTAINER.
DEXTROSE 5%, SODIUM CHLORIDE 0.2% AND POTASSIUM CHLORIDE 0.15% IN PLASTIC CONTAINER vs MAGNESIUM SULFATE IN DEXTROSE 5% IN PLASTIC CONTAINER
Comparing the clinical profiles, pharmacokinetic behaviors, and safety indices of these two therapeutic agents.
Dextrose provides a source of calories and energy, preventing protein catabolism and ketosis. Sodium chloride maintains osmotic pressure and fluid balance. Potassium chloride replenishes potassium and maintains intracellular ion gradients.
Magnesium sulfate provides magnesium ions, which are essential for various physiological processes. It acts as a cofactor for enzymatic reactions, stabilizes excitable membranes, and antagonizes calcium entry at the neuromuscular junction, leading to reduced acetylcholine release and muscle relaxation. In the CNS, it may act as a noncompetitive antagonist of NMDA receptors, exerting anticonvulsant effects.
Intravenous infusion; rate and volume determined by patient's fluid, electrolyte, and caloric needs. Typical adult maintenance: 100-125 mL/hour (2-3 L/day) of D5 0.2% NaCl with 0.15% KCl (20 mEq KCl/L) administered via continuous IV infusion.
1 to 4 g intravenously as a 5% to 20% solution, rate not exceeding 150 mg/min; dosing frequency depends on indication (e.g., preeclampsia/eclampsia: 4-5 g IV loading then 1-2 g/hr infusion; hypomagnesemia: 1-2 g IV over 1-2 hours, may repeat based on serum magnesium levels).
None Documented
None Documented
Dextrose: Not applicable (endogenous substrate, rapidly cleared via metabolism). Potassium: Terminal elimination half-life ~12-24 hours in healthy individuals, prolonged in renal impairment. Sodium and chloride: No defined half-life; renal excretion is regulated by homeostatic mechanisms.
Terminal half-life approximately 4-5 hours in normal renal function; prolonged in renal impairment (up to 40 hours).
Renal: Dextrose is completely metabolized to CO2 and water; only trace amounts excreted unchanged (<2%). Sodium and chloride are primarily excreted renally, with >90% of filtered load reabsorbed; excess is excreted in urine. Potassium is predominantly excreted renally (90%), with minor fecal (10%) loss. Biliary excretion is negligible.
Primarily renal (90-100% as unchanged magnesium). Less than 1% biliary/fecal.
Category A/B
Category C
Electrolyte
Electrolyte