Comparative Pharmacology
Head-to-head clinical analysis: ANAPROX DS versus NAPROXEN SODIUM.
Peer-Reviewed Evidence
Head-to-head clinical analysis: ANAPROX DS versus NAPROXEN SODIUM.
ANAPROX DS vs NAPROXEN SODIUM
Comparing the clinical profiles, pharmacokinetic behaviors, and safety indices of these two therapeutic agents.
Naproxen is a nonsteroidal anti-inflammatory drug (NSAID) that inhibits cyclooxygenase (COX-1 and COX-2) enzymes, reducing prostaglandin synthesis.
Non-selective cyclooxygenase (COX-1 and COX-2) inhibitor, reducing prostaglandin synthesis.
550 mg orally every 8 to 12 hours; maximum 1375 mg/day.
220-550 mg orally twice daily; maximum 1375 mg/day.
None Documented
None Documented
Terminal elimination half-life is approximately 12–17 hours (mean ~14 hours), allowing twice-daily dosing. Steady-state is achieved after 4–5 doses.
12–17 hours (terminal); allows twice-daily dosing; prolonged in elderly and renal impairment
Renal elimination of naproxen and its metabolites accounts for approximately 95% of the dose, with about 60% as unchanged drug and 40% as conjugated or hydroxylated metabolites. Biliary/fecal excretion is negligible (<5%).
Renal: 95% (as unchanged drug, conjugated naproxen, and 6-O-desmethyl naproxen); Fecal: <5%
Category C
Category D/X
NSAID
NSAID