Comparative Pharmacology
Head-to-head clinical analysis: DUEXIS versus PEDIATRIC ADVIL.
Peer-Reviewed Evidence
Head-to-head clinical analysis: DUEXIS versus PEDIATRIC ADVIL.
DUEXIS vs PEDIATRIC ADVIL
Comparing the clinical profiles, pharmacokinetic behaviors, and safety indices of these two therapeutic agents.
DUEXIS is a combination of ibuprofen, a nonsteroidal anti-inflammatory drug (NSAID) that inhibits cyclooxygenase (COX-1 and COX-2) enzymes, reducing prostaglandin synthesis, and famotidine, a histamine H2-receptor antagonist that decreases gastric acid secretion. Famotidine mitigates the risk of NSAID-induced gastric ulcers.
Ibuprofen is a nonsteroidal anti-inflammatory drug (NSAID) that inhibits cyclooxygenase (COX-1 and COX-2) enzymes, reducing prostaglandin synthesis. This leads to anti-inflammatory, analgesic, and antipyretic effects.
One tablet (800 mg ibuprofen/26.6 mg famotidine) orally three times daily.
Ibuprofen 200-400 mg orally every 4-6 hours as needed; maximum 1200 mg/day without prescription.
None Documented
None Documented
Ibuprofen: 2-4 hours (terminal); requires every 6-8 hour dosing. Famotidine: 2.5-3.5 hours (normal renal function); prolonged to 20 hours or more in severe renal impairment (CrCl < 30 mL/min).
Terminal elimination half-life is approximately 2-4 hours in children. Clinical context: rapid clearance; requires frequent dosing every 6-8 hours for sustained antipyretic/analgesic effect.
Ibuprofen: ~1% unchanged in urine, 14% as conjugated metabolites, remainder as oxidative metabolites; <1% excreted in feces. Famotidine: 65-70% unchanged in urine, 30-35% metabolized hepatic; <10% fecal.
Renal excretion of conjugated metabolites (glucuronides and sulfates) accounts for >90% of an administered dose, with <1% excreted unchanged. Biliary/fecal elimination is minimal (<5%).
Category C
Category C
NSAID/H2 Antagonist Combination
NSAID