Comparative Pharmacology
Head-to-head clinical analysis: GOLYTELY versus SUTAB.
Peer-Reviewed Evidence
Head-to-head clinical analysis: GOLYTELY versus SUTAB.
GOLYTELY vs SUTAB
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.
SUTAB is a combination tablet consisting of sodium sulfate, magnesium sulfate, and potassium chloride. It acts as an osmotic laxative by drawing water into the bowel lumen through the osmotic effect of sulfate ions, inducing colonic evacuation. Additionally, magnesium ions enhance this effect by attracting water via osmotic pressure and stimulating the release of cholecystokinin, which promotes peristalsis.
240 mL (oral) every 10 minutes until 4 L consumed or rectal effluent is clear; typically 4 L total over 3-4 hours.
24 tablets administered as 4 tablets every 15 minutes, total dose of 17.5 g sodium sulfate, 3.13 g magnesium sulfate, and 1.64 g potassium sulfate, orally, with water, the evening before colonoscopy.
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).
Terminal elimination half-life: 6-8 hours in adults with normal renal function; prolonged to 20-40 hours in end-stage renal disease.
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.
Primarily renal excretion (65-75% unchanged) with minor biliary/fecal elimination (<10%). Total body clearance approximates renal blood flow.
Category C
Category C
Osmotic Laxative
Osmotic Laxative