Comparative Pharmacology
Head-to-head clinical analysis: DEXTROSE 5 SODIUM CHLORIDE 0 2 AND POTASSIUM CHLORIDE 0 15 IN PLASTIC CONTAINER versus MAGNESIUM SULFATE.
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.
DEXTROSE 5%, SODIUM CHLORIDE 0.2% AND POTASSIUM CHLORIDE 0.15% IN PLASTIC CONTAINER vs MAGNESIUM SULFATE
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 acts as a physiological calcium channel blocker. It inhibits calcium influx into presynaptic nerve terminals, reducing acetylcholine release at the neuromuscular junction and decreasing muscle contraction. It also antagonizes NMDA receptors and stabilizes neuronal membranes.
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.
IV: Loading dose 4-6 g over 20-30 minutes, followed by maintenance infusion 1-2 g/hour for seizure prophylaxis in severe preeclampsia/eclampsia. IM: 4-8 g deep IM initially, then 4 g every 4 hours as needed.
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 elimination half-life approximately 4-6 hours in patients with normal renal function; prolonged to 12-24 hours or more in renal impairment, necessitating dose adjustment
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 (90-95% as unchanged drug); minor biliary/fecal (<5%)
Category A/B
Category C
Electrolyte
Electrolyte