Comparative Pharmacology
Head-to-head clinical analysis: DUEXIS versus TAB PROFEN.
Peer-Reviewed Evidence
Head-to-head clinical analysis: DUEXIS versus TAB PROFEN.
DUEXIS vs TAB-PROFEN
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.
Non-selective cyclooxygenase (COX-1 and COX-2) inhibitor; reduces prostaglandin synthesis.
One tablet (800 mg ibuprofen/26.6 mg famotidine) orally three times daily.
400-800 mg orally every 6-8 hours as needed; maximum 3200 mg/day.
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).
The terminal elimination half-life is 2-4 hours in adults with normal renal function. In elderly patients or those with renal impairment, half-life may be prolonged up to 8-12 hours, requiring dose adjustment.
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 unchanged drug accounts for approximately 70-90% of the administered dose, with the remainder eliminated as glucuronide conjugates in urine. Biliary/fecal elimination is minimal (<5%).
Category C
Category C
NSAID/H2 Antagonist Combination
NSAID