Information about Nitrofurantoin

Nitrofurantoin Uses

Nitrofurantoin is used in the treatment and prevention of bacterial infections of urinary tract.

How Nitrofurantoin works

Nitrofurantoin is an antibiotic. It works by killing the bacteria in the urine that causes infection.

Common side effects of Nitrofurantoin

Nausea, Flatulence, Headache
Written By
Reviewed By
MD (Pharmacology), MBBS
Last updated
13 Jun 2023 | 11:29 AM (UTC)

We provide you with authentic, trustworthy and revelant information

Want to know more

Available Medicine for Nitrofurantoin

NiftasIntas Pharmaceuticals Ltd
80 to ₹1273 variant(s)
UribidIntas Pharmaceuticals Ltd
95 to ₹1362 variant(s)
NiftranSun Pharmaceutical Industries Ltd
96 to ₹2903 variant(s)
MartifurWalter Bushnell
89 to ₹1933 variant(s)
NitrofurWanbury Ltd
1271 variant(s)
NitrobactMankind Pharma Ltd
961 variant(s)
NitrobestLupin Ltd
881 variant(s)
FurentTTK Healthcare Ltd
871 variant(s)
XoniftCorona Remedies Pvt Ltd
901 variant(s)
UritopAstrum Healthcare Pvt Ltd
46 to ₹913 variant(s)

Expert advice for Nitrofurantoin

  • Nitrofurantoin treats and prevents uncomplicated urinary tract infections.
  • Finish the prescribed course of the medicine, even if you start to feel better. Stopping it early may make the infection come back and harder to treat.
  • Take it with food to avoid nausea, which is a common side effect.
  • It can turn your urine a dark yellow or brown colour. This is normal and nothing to worry about.
  • Do not take it for longer or more often than prescribed by your doctor.

Frequently asked questions for Nitrofurantoin


Q. How long does Nitrofurantoin take to work on a UTI?

Nitrofurantoin starts acting quickly, but you will not start feeling better immediately after taking it. It may take a few days (2-3 days) before you see any improvement in your symptoms. If you do not start feeling better within 3 days of starting Nitrofurantoin or your condition worsens, contact your doctor. It is important to complete the full course of Nitrofurantoin as advised by your doctor, even if you start feeling better.

Q. What happens if you take Nitrofurantoin without food?

You should take Nitrofurantoin with your meal or straightaway after the meal. Taking with food helps in absorption of medicine so that it works better. If you take it without food, you are likely to get an upset stomach. The symptoms include nausea, vomiting, diarrhoea, and loss of appetite may also occur. Therefore, to avoid unpleasant side effects, take it exactly as prescribed by your doctor.

Q. Does Nitrofurantoin make your urine orange?

Nitrofurantoin may turn your urine brown or dark yellow in colour. However, you need not worry as this is usually temporary and completely harmless effect. It will disappear once you stop taking Nitrofurantoin. Consult your doctor if you are not sure or still have any concern, but do not stop taking Nitrofurantoin.

Q. Can Nitrofurantoin give you a yeast infection?

Yes, some people may get a fungal or yeast infection known as ‘thrush’ after taking Nitrofurantoin. This is because antibiotics kill the ‘good bacteria’ which help in preventing thrush. You should inform your doctor if you get vaginal itching or discharge after taking Nitrofurantoin or soon after stopping it.

Q. Is Nitrofurantoin a strong antibiotic?

Yes, Nitrofurantoin is a strong antibiotic (or broad spectrum antibiotic), which means that it is effective against a wide variety of urinary bacteria. It is important that Nitrofurantoin should be given to treat or prevent infections that are proven to be caused by susceptible bacteria. This is usually evaluated by a culture test which demonstrates a range of bacteria which cannot grow in the prence of an antibiotic. Nitrofurantoin has seen to be effective against UTI caused by Escherichia coli, Enteroccus faecalis, Klebsiella species, Enterobacter species, Staphylococcus species: (eg S. aureus, S. saprophyticus, S. epidermidis). Some strains of Enterobacter and Klebsiella are resistant to Nitrofurantoin.


Orders Delivered
Get the link to download App

All products displayed on Tata 1mg are procured from verified and licensed pharmacies. All labs listed on the platform are accredited


Tata 1mg uses Secure Sockets Layer (SSL) 128-bit encryption and is Payment Card Industry Data Security Standard (PCI DSS) compliant


Find affordable medicine substitutes, save up to 50% on health products, up to 80% off on lab tests and free doctor consultations.

LegitScript approved
India's only LegitScript and ISO/ IEC 27001 certified online healthcare platform

Know more about Tata 1mgdownArrow

Access medical and health information

Tata 1mg provides you with medical information which is curated, written and verified by experts, accurate and trustworthy. Our experts create high-quality content about medicines, diseases, lab investigations, Over-The-Counter (OTC) health products, Ayurvedic herbs/ingredients, and alternative remedies.

Order medicines online

Get free medicine home delivery in over 1800 cities across India. You can also order Ayurvedic, Homeopathic and other Over-The-Counter (OTC) health products. Your safety is our top priority. All products displayed on Tata 1mg are procured from verified and licensed pharmacies.

Book lab tests

Book any lab tests and preventive health packages from certified labs and get tested from the comfort of your home. Enjoy free home sample collection, view reports online and consult a doctor online for free.

Consult a doctor online

Got a health query? Consult doctors online from the comfort of your home for free. Chat privately with our registered medical specialists to connect directly with verified doctors. Your privacy is guaranteed.