Comparative Pharmacology
Head-to-head clinical analysis: DEXTROSE 5 SODIUM CHLORIDE 0 45 AND POTASSIUM CHLORIDE 15MEQ IN PLASTIC CONTAINER versus MAGNESIUM SULFATE IN PLASTIC CONTAINER.
Peer-Reviewed Evidence
Head-to-head clinical analysis: DEXTROSE 5 SODIUM CHLORIDE 0 45 AND POTASSIUM CHLORIDE 15MEQ IN PLASTIC CONTAINER versus MAGNESIUM SULFATE IN PLASTIC CONTAINER.
DEXTROSE 5%, SODIUM CHLORIDE 0.45% AND POTASSIUM CHLORIDE 15MEQ IN PLASTIC CONTAINER vs MAGNESIUM SULFATE IN PLASTIC CONTAINER
Comparing the clinical profiles, pharmacokinetic behaviors, and safety indices of these two therapeutic agents.
Dextrose provides caloric support and maintains blood glucose levels; sodium chloride and potassium chloride restore electrolyte balance and maintain osmolality.
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; adult dose determined by fluid, electrolyte, and caloric needs; typical rate 100-200 mL/hour; maximum infusion rate 25 g/hour (500 mL/hour of D5) to avoid hyperglycemia; potassium dose not to exceed 10 mEq/hour; usual daily potassium requirement 40-100 mEq.
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
Not applicable as dextrose, sodium, and potassium are endogenous substances; their elimination reflects physiologic clearance. Potassium has an effective half-life of ~12-24 hours depending on renal function and distribution.
Normal renal function: 4–6 hours (terminal). In oliguria or anuria, half-life may extend to >24 hours, requiring dose adjustment.
Potassium is primarily excreted renally (90%), with minor fecal loss (10%). Dextrose and sodium are fully metabolized or excreted renally; dextrose undergoes cellular metabolism, and sodium is excreted renally via glomerular filtration and tubular reabsorption.
Primarily renal (glomerular filtration); >90% excreted unchanged in urine. Biliary/fecal elimination is negligible (<1%).
Category A/B
Category C
Electrolyte
Electrolyte