Comparative Pharmacology
Head-to-head clinical analysis: ANAPROX versus PIROXICAM.
Peer-Reviewed Evidence
Head-to-head clinical analysis: ANAPROX versus PIROXICAM.
ANAPROX vs PIROXICAM
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, which mediates inflammation, pain, and fever.
Nonsteroidal anti-inflammatory drug (NSAID) that inhibits cyclooxygenase (COX-1 and COX-2) enzymes, reducing prostaglandin synthesis, thereby decreasing inflammation, pain, and fever.
250-500 mg orally twice daily; maximum 1.5 g/day; for extended-release: 375-750 mg orally twice daily
10-20 mg orally once daily; maximum 20 mg/day.
None Documented
None Documented
Terminal elimination half-life 12-17 hours; prolonged in elderly (up to 20 hours) and in renal impairment.
Clinical Note
moderatePiroxicam + Gatifloxacin
"Piroxicam may increase the neuroexcitatory activities of Gatifloxacin."
Clinical Note
moderatePiroxicam + Rosoxacin
"Piroxicam may increase the neuroexcitatory activities of Rosoxacin."
Clinical Note
moderatePiroxicam + Levofloxacin
"Piroxicam may increase the neuroexcitatory activities of Levofloxacin."
Clinical Note
moderatePiroxicam + Trovafloxacin
"Piroxicam may increase the neuroexcitatory activities of Trovafloxacin."
Terminal elimination half-life is 50 hours (range 30-86 hours), allowing once-daily dosing. Prolonged in elderly (up to 80 hours) and in hepatic impairment.
Renal excretion of metabolites (95%) and unchanged drug (<5%); biliary/fecal elimination minor (<5%).
Approximately 60-70% renal (glomerular filtration and tubular secretion) as unchanged drug and metabolites; 30-40% fecal via biliary excretion. Less than 5% as unchanged drug in urine.
Category C
Category D/X
NSAID
NSAID