Antimicrobials
Norfloxacin

Norfloxacin

High
Moderate
$2/day

Spectrum of Activity

Dosing

General Information

Prophylaxis of spontaneous bacterial peritonitis

Uncomplicated UTI

Monitor QTc in patients with increased risk

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

Other QTc prolonging agents

Divalent cations - decreased absoprtion

Methadone - increased seizures

Thyroid replacement - decreases T

Warfarin - increased INR

Antimicrobial class: Fluoroquinolone

Pregnancy category: C

Average serum half life: 4.0

Biliary penetration: Therapeutic

CSF penetration: Poor

Urine penetration: Therapeutic