Comparative Pharmacology
Head-to-head clinical analysis: NAPROXEN versus ONMEL.
Peer-Reviewed Evidence
Head-to-head clinical analysis: NAPROXEN versus ONMEL.
NAPROXEN vs ONMEL
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), thereby reducing the synthesis of prostaglandins involved in inflammation, pain, and fever.
ONMEL (omacetaxine mepesuccinate) inhibits protein synthesis by binding to the 80S ribosome and interfering with chain elongation, leading to apoptosis in leukemic cells.
250-500 mg orally twice daily; maximum 1.5 g/day. For extended-release: 750-1000 mg orally once daily.
50 mg orally twice daily for 14 days
None Documented
None Documented
Terminal elimination half-life 12-17 hours (mean 14 hours); permits twice-daily dosing. Half-life prolonged in elderly and hepatic impairment.
Clinical Note
moderateNaproxen + Gatifloxacin
"Naproxen may increase the neuroexcitatory activities of Gatifloxacin."
Clinical Note
moderateNaproxen + Rosoxacin
"Naproxen may increase the neuroexcitatory activities of Rosoxacin."
Clinical Note
moderateNaproxen + Levofloxacin
"Naproxen may increase the neuroexcitatory activities of Levofloxacin."
Clinical Note
moderateNaproxen + Trovafloxacin
"Naproxen may increase the neuroexcitatory activities of Trovafloxacin."
Terminal half-life 40–60 hours (mean 50 hours); allows once-daily dosing for systemic antifungal therapy.
Primarily renal (95% as unchanged naproxen and 6-O-desmethylnaproxen); <5% fecal via biliary excretion.
Primarily hepatic metabolism via CYP3A4; <1% excreted unchanged in urine; >90% eliminated as metabolites in bile and feces.
Category D/X
Category C
NSAID
NSAID