Comparative Pharmacology
Head-to-head clinical analysis: POLYETHYLENE GLYCOL 3350 versus SUTAB.
Peer-Reviewed Evidence
Head-to-head clinical analysis: POLYETHYLENE GLYCOL 3350 versus SUTAB.
POLYETHYLENE GLYCOL 3350 vs SUTAB
Comparing the clinical profiles, pharmacokinetic behaviors, and safety indices of these two therapeutic agents.
Osmotic laxative. Polyethylene glycol 3350 is a non-absorbable polymer that retains water in the colon via hydrogen bonding, increasing stool water content and stimulating defecation.
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.
17 g (1 capful or packet) dissolved in 4–8 oz (120–240 mL) water, administered orally once daily for constipation; for colonoscopy preparation, 240 g (4 L of solution) ingested at 240 mL every 10–15 minutes.
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
Terminal elimination half-life is 1-2 hours in patients with normal renal function; prolonged in renal impairment, but clinical impact minimal due to primarily fecal elimination.
Terminal elimination half-life: 6-8 hours in adults with normal renal function; prolonged to 20-40 hours in end-stage renal disease.
Renal: approximately 20% excreted unchanged; Fecal: approximately 80% eliminated unchanged in feces.
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