Strength400 mg
Formoral.solid
Adult dose and duration400 mg every 12 hours x 4 to 6 weeks
Paediatric doseAdult-only condition - paediatric section not applicable
ChoiceSourced preference over the ofloxacin row beside it. The formulary prints a prostatitis regimen for norfloxacin by name - by mouth, 400 mg every 12 hours, the course running 4 to 6 weeks - so drug, dose and duration all come from one document. Ofloxacin's row carries the formulary's general adult dose and takes its 2-to-4-week course from the disease article instead. Ciprofloxacin remains the card's main treatment; this pair is what to use when ciprofloxacin is unsuitable.
Dose sourceEgyptian National Drug Formulary - Antimicrobial 2023 (norfloxacin monograph, Dosage Regimen, Tablets: Adult dosing, Prostatitis)
WhyOne document carries drug, dose AND duration. The Egyptian formulary's norfloxacin monograph prints an explicit prostatitis regimen in its own dosing table - by mouth, 400 mg every 12 hours, and the course runs 4 to 6 weeks - which is better sourced than the ofloxacin row beside it, whose 2-to-4-week course had to be taken from the disease article. The condition's article supplies the class-level indication: a patient who is not severely ill can go home on an oral fluoroquinolone or on Bactrim for 2 to 4 weeks, with a follow-up culture to confirm it has cleared. Seven Egyptian norfloxacin products are registered, six of them 400 mg tablets.
Cautions- CONTRAINDICATED where the patient is hypersensitive to norfloxacin, to quinolones as a class, or to any of the product's other ingredients - and, for the tablets, where there is a past tendinitis or tendon rupture linked to a quinolone.
- The formulary's own Indications line for the tablets is narrower than its dosing table - it lists urinary tract infection, complicated or not, from susceptible gram-negative and gram-positive organisms. Prostatitis is named in the Dosage Regimen, not in that list, and the disease article is what recommends an oral fluoroquinolone for this condition.
- The formulary's course is 4 to 6 weeks and the article's is 2 to 4 weeks for oral fluoroquinolones generally; the row prints the formulary's, because that is the figure attached to prostatitis by name.
- Take with water on an empty stomach - 1 hour or more before food, or 2 hours after it; the same spacing applies to milk and other dairy. The instruction is the formulary's.
- Antacids, sucralfate and any multivitamin or supplement carrying iron, zinc, magnesium or aluminium must never be given at the same time as norfloxacin - separate them by 2 hours at least, either side of the dose.
- Renal impairment: at a CrCl of 30 mL/minute/1.73 m2 or below, the formulary gives 400 mg once daily.
- It is not to be used where there is a known aortic aneurysm, nor where the risk of one is raised - peripheral atherosclerotic vascular disease, hypertension, or an inherited disorder that alters the blood vessels. The warning is the formulary's.
- Fluoroquinolone class risks apply: tendinitis and tendon rupture, peripheral neuropathy, CNS effects, QT prolongation and disordered glucose regulation.
- Sepsis, urinary retention, or risk factors for resistant organisms mean admission and parenteral therapy, not an oral course.