Comparative Pharmacology
Head-to-head clinical analysis: CIPRO versus QUIXIN.
Peer-Reviewed Evidence
Head-to-head clinical analysis: CIPRO versus QUIXIN.
CIPRO vs QUIXIN
Comparing the clinical profiles, pharmacokinetic behaviors, and safety indices of these two therapeutic agents.
Ciprofloxacin inhibits bacterial DNA gyrase and topoisomerase IV, preventing DNA replication and transcription, leading to bacterial cell death.
Quixin (levofloxacin) is a fluoroquinolone antibiotic that inhibits bacterial DNA gyrase (topoisomerase II) and topoisomerase IV, thereby interfering with DNA replication, transcription, repair, and recombination.
Ciprofloxacin 500 mg PO q12h or 400 mg IV q12h for uncomplicated infections; 750 mg PO q12h or 400 mg IV q8h for severe/complicated infections.
One to two drops in affected eye(s) every 2 hours while awake, up to 8 times daily for 7-14 days.
None Documented
None Documented
Terminal elimination half-life: 3-5 hours (normal renal function), extended to 8-10 hours in mild-to-moderate renal impairment (CrCl 30-50 mL/min) and up to >10 hours in severe impairment (CrCl <30 mL/min); half-life in elderly may be 5-8 hours due to reduced clearance.
Clinical Note
moderateCiprofloxacin + Digoxin
"Ciprofloxacin may decrease the cardiotoxic activities of Digoxin."
Clinical Note
moderateCiprofloxacin + Digitoxin
"Ciprofloxacin may decrease the cardiotoxic activities of Digitoxin."
Clinical Note
moderateCiprofloxacin + Deslanoside
"Ciprofloxacin may decrease the cardiotoxic activities of Deslanoside."
Clinical Note
moderateCiprofloxacin + Acetyldigitoxin
"Ciprofloxacin may decrease the cardiotoxic activities of Acetyldigitoxin."
Terminal elimination half-life: 6–8 hours in adults with normal renal function; prolonged in renal impairment (up to 20 hours if CrCl <30 mL/min).
Renal (50-70% unchanged via glomerular filtration and tubular secretion); biliary/fecal (15-20%, primarily as metabolites); small amount metabolized to 4 metabolites (oxo-, sulfo-, and desethylene-ciprofloxacin).
Renal (approximately 70% unchanged in urine); biliary/fecal (~30%, partly as metabolites and unchanged drug).
Category C
Category C
Fluoroquinolone Antibiotic
Fluoroquinolone Antibiotic