Comparative Pharmacology
Head-to-head clinical analysis: EC NAPROSYN versus MECLOMEN.
Peer-Reviewed Evidence
Head-to-head clinical analysis: EC NAPROSYN versus MECLOMEN.
EC-NAPROSYN vs MECLOMEN
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-1 (COX-1) and cyclooxygenase-2 (COX-2) enzymes, thereby reducing prostaglandin synthesis, which mediates inflammation, pain, and fever.
Meclomen (meclofenamate) is a nonsteroidal anti-inflammatory drug (NSAID) that inhibits cyclooxygenase (COX-1 and COX-2) enzymes, reducing prostaglandin synthesis. This results in anti-inflammatory, analgesic, and antipyretic effects.
500-1000 mg orally twice daily; maximum 1500 mg/day.
50-100 mg orally every 6-8 hours; maximum 400 mg/day.
None Documented
None Documented
Terminal elimination half-life 12-17 hours (mean 14 hours); prolonged in elderly and renal impairment
Terminal elimination half-life: 0.8–1.1 hours for meclofenamic acid; 2–4 hours for metabolites. Short half-life requires frequent dosing (e.g., every 6–8 hours) for sustained effect.
Renal (95%) as unchanged drug (10%) and conjugated metabolites (60%) and other metabolites (25%); biliary/fecal (5%)
Renal (approximately 70% as metabolites, <5% unchanged); fecal/biliary (approximately 30% as metabolites).
Category C
Category C
NSAID
NSAID