Comparative Pharmacology
Head-to-head clinical analysis: DYLOJECT versus EC NAPROSYN.
Peer-Reviewed Evidence
Head-to-head clinical analysis: DYLOJECT versus EC NAPROSYN.
DYLOJECT vs EC-NAPROSYN
Comparing the clinical profiles, pharmacokinetic behaviors, and safety indices of these two therapeutic agents.
Nonsteroidal anti-inflammatory drug (NSAID) that inhibits cyclooxygenase-1 (COX-1) and cyclooxygenase-2 (COX-2), thereby reducing prostaglandin synthesis, which mediates inflammation, pain, and fever.
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.
50 mg intramuscularly every 6 hours as needed for pain; maximum 150 mg per day.
500-1000 mg orally twice daily; maximum 1500 mg/day.
None Documented
None Documented
2-4 hours (terminal) in adults; prolonged in elderly (up to 6-8 hours) and hepatic impairment (up to 12 hours).
Terminal elimination half-life 12-17 hours (mean 14 hours); prolonged in elderly and renal impairment
Renal: ~50% as unchanged drug and metabolites (glucuronide conjugates); Biliary/fecal: ~40% as metabolites; <5% unchanged in feces.
Renal (95%) as unchanged drug (10%) and conjugated metabolites (60%) and other metabolites (25%); biliary/fecal (5%)
Category C
Category C
NSAID
NSAID