Antibiotic (Fluoroquinolone)
Last reviewed June 2026
Who is this for?
Norfloxacin is an antibiotic that works by killing bacteria responsible for infections, especially in the urinary tract, stomach, and eyes. It belongs to a group of antibiotics called fluoroquinolones that stop bacteria from multiplying.
Inhibits bacterial DNA gyrase and topoisomerase IV, preventing DNA replication and transcription in susceptible Gram-negative and Gram-positive organisms.
Prescription Required
You need a doctor's prescription to buy this drug.
Explore this drug
For most infections, take one 400mg tablet twice a day (morning and evening). Take it on an empty stomach — at least 1 hour before food or 2 hours after food. Swallow with a full glass of water and drink plenty of water throughout the day. Complete the full course your doctor prescribed, usually 7 to 14 days depending on the infection.
If you miss a dose, take it as soon as you remember. But if it is almost time for your next dose, skip the missed one and continue as normal. Do not take two tablets at once to make up for the missed dose.
Important for antibiotics
Always complete the full course even if you feel better. Stopping early can cause the infection to return and become drug-resistant.
Always complete the full course of antibiotics even if you feel better — stopping early can cause the infection to return and make the bacteria resistant. Do not buy antibiotics from roadside sellers or use leftover antibiotics from someone else. Drink plenty of water while taking this drug to help your kidneys and avoid exposing your skin to too much sunlight as this drug can make your skin burn more easily.
Do not take norfloxacin with antacids, iron supplements, or calcium tablets — these reduce its effectiveness; wait at least 2 hours between them. Avoid taking it with blood thinners like warfarin as it can increase the risk of bleeding. Avoid alcohol while on this drug as it may worsen side effects like dizziness and stomach upset.
Check your specific combination
Is it safe to take Norfloxacin with your other drugs?
Norfloxacin is NOT recommended during pregnancy or breastfeeding — it may harm the baby's developing bones and joints, so consult your doctor for a safer alternative.
Store in a cool, dry place away from direct sunlight and heat — Nigerian weather can be very hot, so avoid leaving it in your car or near a window. Keep the tablets in their original pack and away from moisture. Always keep out of reach of children.
For information only — not medical advice. Always talk to a doctor or pharmacist before changing your medication.
Names this drug is sold under — especially in Nigerian and West African pharmacies
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Counterfeit Drug Warning
Fake drugs are a serious problem in Nigeria. Always buy from a registered pharmacy. If the packaging looks different from what is described above, do not use it.