Comparative Pharmacology
Head-to-head clinical analysis: GOLYTELY versus PLEGISOL IN PLASTIC CONTAINER.
Peer-Reviewed Evidence
Head-to-head clinical analysis: GOLYTELY versus PLEGISOL IN PLASTIC CONTAINER.
GOLYTELY vs PLEGISOL IN PLASTIC CONTAINER
Comparing the clinical profiles, pharmacokinetic behaviors, and safety indices of these two therapeutic agents.
Polyethylene glycol 3350 is an osmotic laxative that induces diarrhea by retaining water in the bowel lumen through osmotic activity. Electrolytes (sodium sulfate, potassium chloride, sodium bicarbonate) prevent significant electrolyte absorption or loss.
PLEGISOL is an extracellular-type crystalloid cardioplegic solution used for myocardial protection during cardiac surgery. Its mechanism involves inducing rapid cardiac arrest by high potassium concentration (depolarizing arrest), reducing myocardial oxygen demand, and providing buffering capacity via tromethamine to maintain pH. The solution also contains magnesium to stabilize membranes and mannitol as an osmotic agent to reduce edema.
240 mL (oral) every 10 minutes until 4 L consumed or rectal effluent is clear; typically 4 L total over 3-4 hours.
Administered as an intraperitoneal infusion for organ preservation. Typical adult dose: 2.5-3.0 liters for kidney, 2.5-3.0 liters for liver, 3.0-4.0 liters for pancreas, single dose prior to procurement.
None Documented
None Documented
Not applicable (PEG 3350 is not significantly absorbed; effective half-life in GI tract is approximately 2-4 hours for colonic clearance).
Not applicable; Plegisol is not a systemically active drug. Its cardioplegic effect is immediate upon perfusion into coronary arteries and dissipates upon reperfusion. The solution's components have endogenous half-lives (e.g., potassium: 1-1.5 h in plasma), but this is not clinically relevant for the product.
Primarily fecal elimination of unabsorbed polyethylene glycol 3350. Minimal systemic absorption (<0.06%), less than 0.06% recovered in urine as intact PEG 3350; electrocytes and sulfate (from sodium sulfate) are renally excreted.
Plegisol is an extracellular cardioplegic solution; its components (electrolytes and calcium) are not metabolized. Elimination of infused volume occurs primarily via renal excretion (approx. 95%) as unchanged water and electrolytes; minor biliary/fecal elimination (<5%) accounts for negligible electrolyte loss.
Category C
Category C
Osmotic Laxative
Osmotic Laxative