Comparative Pharmacology
Head-to-head clinical analysis: DIFLUNISAL versus EC NAPROSYN.
Peer-Reviewed Evidence
Head-to-head clinical analysis: DIFLUNISAL versus EC NAPROSYN.
DIFLUNISAL 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) enzymes, reducing prostaglandin synthesis, thereby exerting analgesic, anti-inflammatory, and antipyretic effects.
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.
500 mg to 1000 mg orally initially, then 250 mg to 500 mg every 8 to 12 hours. Maximum daily dose: 1500 mg.
500-1000 mg orally twice daily; maximum 1500 mg/day.
None Documented
None Documented
8-12 hours (prolonged in renal impairment; clinical context: permits twice-daily dosing)
Clinical Note
moderateDiflunisal + Gatifloxacin
"Diflunisal may increase the neuroexcitatory activities of Gatifloxacin."
Clinical Note
moderateDiflunisal + Rosoxacin
"Diflunisal may increase the neuroexcitatory activities of Rosoxacin."
Clinical Note
moderateDiflunisal + Levofloxacin
"Diflunisal may increase the neuroexcitatory activities of Levofloxacin."
Clinical Note
moderateDiflunisal + Trovafloxacin
"Diflunisal may increase the neuroexcitatory activities of Trovafloxacin."
Terminal elimination half-life 12-17 hours (mean 14 hours); prolonged in elderly and renal impairment
Renal (90% as glucuronide conjugates, <5% unchanged); biliary/fecal (<10%)
Renal (95%) as unchanged drug (10%) and conjugated metabolites (60%) and other metabolites (25%); biliary/fecal (5%)
Category C
Category C
NSAID
NSAID