Comparative Pharmacology
Head-to-head clinical analysis: GOLYTELY versus MIRALAX.
Peer-Reviewed Evidence
Head-to-head clinical analysis: GOLYTELY versus MIRALAX.
GOLYTELY vs MIRALAX
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.
Polyethylene glycol 3350 (PEG 3350) is an osmotic laxative that works by retaining water in the stool through hydrogen bonding, increasing fecal water content and promoting bowel movements.
240 mL (oral) every 10 minutes until 4 L consumed or rectal effluent is clear; typically 4 L total over 3-4 hours.
17 g (1 heaping tablespoon) dissolved in 4–8 oz of water, juice, soda, coffee, or tea, administered orally once daily. Maximum duration of use: 7 days.
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; polyethylene glycol 3350 is minimally absorbed and systemic half-life is not clinically relevant.
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 excreted unchanged in feces (>90% of oral dose); negligible renal elimination (<0.1% recovered in urine).
Category C
Category C
Osmotic Laxative
Osmotic Laxative