Comparative Pharmacology
Head-to-head clinical analysis: DEXILANT SOLUTAB versus PREVACID NAPRAPAC 500 COPACKAGED.
Peer-Reviewed Evidence
Head-to-head clinical analysis: DEXILANT SOLUTAB versus PREVACID NAPRAPAC 500 COPACKAGED.
DEXILANT SOLUTAB vs PREVACID NAPRAPAC 500 (COPACKAGED)
Comparing the clinical profiles, pharmacokinetic behaviors, and safety indices of these two therapeutic agents.
Proton pump inhibitor that suppresses gastric acid secretion by specific inhibition of the H+/K+ ATPase enzyme system at the secretory surface of gastric parietal cells.
Lansoprazole inhibits gastric acid secretion by irreversibly binding to the H+/K+ ATPase (proton pump) in gastric parietal cells. Naproxen is a nonsteroidal anti-inflammatory drug (NSAID) that inhibits cyclooxygenase (COX-1 and COX-2), reducing prostaglandin synthesis.
30 mg orally once daily for 4-8 weeks; for non-erosive GERD, 30 mg orally once daily for 4 weeks; for erosive esophagitis, 60 mg orally once daily for up to 8 weeks; for maintenance of healed EE and relief of heartburn, 30 mg orally once daily. Administer without regard to food; dissolve tablet in water.
One tablet of naproxen 500 mg and one capsule of lansoprazole 15 mg taken together orally once daily. Naproxen component: 500 mg orally twice daily. Lansoprazole component: 15 mg orally once daily.
None Documented
None Documented
Terminal elimination half-life is approximately 1-2 hours; however, the pharmacodynamic half-life (duration of acid suppression) is prolonged due to accumulation in parietal cell canaliculi.
Naproxen: 12–17 hours (mean ~14 h), prolonged with renal impairment. Esomeprazole: 1–1.5 hours (increase to 2–3 h with CYP2C19 poor metabolizers or hepatic impairment).
Renal (approx. 53% as metabolites, <2% as unchanged drug), biliary/fecal (approx. 47%).
Naproxen: 95% renal (primarily as unchanged drug and metabolites, including 6-O-desmethyl naproxen), <5% biliary/fecal. Esomeprazole: 80% renal (as metabolites, primarily hydroxyesomeprazole and desmethyl-esomeprazole, with ~1% unchanged), 20% fecal (via bile).
Category C
Category C
Proton Pump Inhibitor
Proton Pump Inhibitor/NSAID Combination