Comparative Pharmacology
Head-to-head clinical analysis: ISOLYTE S IN PLASTIC CONTAINER versus PLASMA LYTE 56 AND DEXTROSE 5 IN PLASTIC CONTAINER.
Peer-Reviewed Evidence
Head-to-head clinical analysis: ISOLYTE S IN PLASTIC CONTAINER versus PLASMA LYTE 56 AND DEXTROSE 5 IN PLASTIC CONTAINER.
ISOLYTE S IN PLASTIC CONTAINER vs PLASMA-LYTE 56 AND DEXTROSE 5% IN PLASTIC CONTAINER
Comparing the clinical profiles, pharmacokinetic behaviors, and safety indices of these two therapeutic agents.
Isolyte S is an electrolyte and fluid replenisher. It provides water and essential electrolytes (sodium, potassium, magnesium, chloride, acetate, gluconate) to restore and maintain extracellular fluid volume and electrolyte balance. Acetate and gluconate are metabolized to bicarbonate, serving as bicarbonate precursors to help correct metabolic acidosis.
Plasma-Lyte 56 and Dextrose 5% is a crystalloid solution that provides electrolytes and carbohydrates. Dextrose is metabolized to glucose, which is utilized for cellular energy production. The electrolytes (sodium, chloride, potassium, magnesium, and acetate) maintain or restore intravascular volume, acid-base balance, and osmotic gradients. Acetate is metabolized to bicarbonate, providing an alkalinizing effect.
Intravenous administration, typical adult dose is 500-1000 mL per hour, adjusted based on clinical status and electrolyte needs.
Intravenous infusion; dose depends on fluid and electrolyte requirements. Typical adult dose: 500-1000 mL as a single infusion, rate up to 333 mL/hour. Maximum 3 L/24 hours.
None Documented
None Documented
The terminal elimination half-life for the individual electrolytes varies: Sodium has a half-life of approximately 2-4 hours depending on hydration and renal function; potassium has a half-life of 5-7 hours in normal renal function; magnesium has a half-life of 24-72 hours; calcium has a half-life of 3-6 hours. Clinically, the half-life is prolonged in renal impairment, necessitating dose adjustment.
Not applicable; composition-dependent. Dextrose half-life ~2 hours. Electrolytes follow endogenous regulation; no terminal elimination half-life defined.
The electrolytes in ISOLYTE S are primarily excreted via renal elimination. Sodium and chloride are almost entirely excreted by the kidneys, with minimal biliary or fecal elimination (<2%). Potassium is predominantly excreted renally (90%), with approximately 10% eliminated via feces. Magnesium and calcium are mainly excreted in urine (70-80% for magnesium, 20-30% for calcium) with some biliary/fecal excretion. Acetate and gluconate are metabolized to bicarbonate and excreted renally.
Renal 100% (electrolytes and dextrose metabolized to CO2 and water; excess water and electrolytes excreted unchanged in urine).
Category C
Category C
Intravenous Electrolyte Solution
Intravenous Electrolyte Solution