Comparative Pharmacology
Head-to-head clinical analysis: GO EVAC versus POLYETHYLENE GLYCOL 3350.
Peer-Reviewed Evidence
Head-to-head clinical analysis: GO EVAC versus POLYETHYLENE GLYCOL 3350.
GO-EVAC vs POLYETHYLENE GLYCOL 3350
Comparing the clinical profiles, pharmacokinetic behaviors, and safety indices of these two therapeutic agents.
Promotes gastrointestinal motility by acting as a stimulant laxative, likely through direct irritation of the colonic mucosa and possibly via local effects on enteric neurons.
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.
10 mg orally once daily, with or without food.
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.
None Documented
None Documented
4.5-6 hours in healthy volunteers; prolonged to 10-14 hours in elderly patients and those with moderate renal impairment (CrCl 30-50 mL/min).
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.
Primarily renal; approximately 60% eliminated unchanged in urine within 24 hours, with 20% as metabolites. Biliary/fecal excretion accounts for 15-20%, and the remainder is metabolized via glucuronidation.
Renal: approximately 20% excreted unchanged; Fecal: approximately 80% eliminated unchanged in feces.
Category C
Category C
Osmotic Laxative
Osmotic Laxative