Spectrum of Activity


General Information

Pseudomonal and other gram negative infections of urinary tract, bone/joint, abdomen and other sites

Monitor QTc in patients with increased risk

  • QTc prolongation
  • Dysglycemia
  • Tendinopathy and rupture
  • GI upset
  • Rash
  • Retinal detachment
  • CNS toxicity including confusion, psychosis
  • Weakness exacerbation in myasthenia gravis

CYP1A2 inhibitor - Multiple interactions possible.

QTc prolongation - Increased risk with other agents that prolong QTc.

Divalent & trivalent cations including Al, Ca, Fe, Mg (antacids, dairy products, iron supplements, some enteral feeds) - Decreased absorption.

Cyclosporine - Increased levels of cyclosporine.

Warfarin - Increased INR.

Methadone - Lowered seizure threshold.

Antimicrobial class: Fluoroquinolone

Pregnancy category: C

Average serum half life: 4 hours

Urine penetration: Therapeutic

Lung penetration: Therapeutic

CSF penetration: Moderate

Biliary penetration: Therapeutic