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indicationFor the treatment of adults (≥18 years of age) with the following infections caused by susceptible strains of the designated microorganisms: (1) uncomplicated urethral or cervical gonorrhea due to Neisseria gonorrhoeae, (2) uncomplicated urinary tract infections (cystitis) due to Escherichia coli, Staphylococcus epidermidis, or Staphylococcus saprophyticus, and (3) complicated urinary tract infections due to Escherichia coli, Klebsiella pneumoniae, Proteus mirabilis, Pseudomonas aeruginosa, Staphylococcus epidermidis, or Enterobacter cloacae.
pharmacologyEnoxacin is a quinolone/fluoroquinolone antibiotic. Enoxacin is bactericidal and its mode of action depends on blocking of bacterial DNA replication by binding itself to an enzyme called DNA gyrase, which allows the untwisting required to replicate one DNA double helix into two. Enoxacin is a broad-spectrum antibiotic that is active against both Gram-positive and Gram-negative bacteria. Enoxacin may be active against pathogens resistant to drugs that act by different mechanisms.
mechanism of actionEnoxacin exerts its bactericidal action via the inhibition of the essential bacterial enzyme DNA gyrase (DNA Topoisomerase II).
biotransformationHepatic. Some isozymes of the cytochrome P-450 hepatic microsomal enzyme system are inhibited by enoxacin. After a single dose, greater than 40% was recovered in urine by 48 hours as unchanged drug.
absorptionRapidly absorbed following oral administration, with an absolute oral bioavailability of approximately 90%.
half lifePlasma half-life is 3 to 6 hours.
drug interactionsAminophylline: Enoxacin may increase the effect of aminophylline.
Calcium: Formation of non-absorbable complexes
Cimetidine: Cimetidine may decrease the absorption of enoxacin.
Esomeprazole: Esomeprazole may decrease the absorption of enoxacin.
Famotidine: Famotidine may decrease the absorption of enoxacin.
Iron Dextran: Formation of non-absorbable complexes
Lansoprazole: Lansoprazole may decrease the absorption of enoxacin.
Magnesium: Formation of non-absorbable complexes
Nizatidine: Nizatidine may decrease the absorption of enoxacin.
Omeprazole: Omeprazole may decrease the absorption of enoxacin.
Oxtriphylline: Enoxacin may increase the effect of oxtriphylline.
Pantoprazole: Pantoprazole may decrease the absorption of enoxacin.
Rabeprazole: Rabeprazole may decrease the absorption of enoxacin.
Ramelteon: Enoxacin increases levels/toxicity of ramelteon
Theophylline: Enoxacin may increase the effect of theophylline.