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Nitrofurantoin 100mg Modified-Release Capsules

Original price was: £18.99.Current price is: £17.49.

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  • Antibiotic used to treat urinary tract infections.
  • Available in 100mg strength, ensuring effective dosage for adults.
  • Suitable for short-term treatment of bladder and kidney infections.
  • Buy online from a UK-licensed following a free online consultation.

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Nitrofurantoin for Cystitis and Urinary Tract Infections (UTIs)

A view from our expert
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Mr Mohammed

Advance Pharmacist Prescriber

"Nitrofurantoin stands out as a first-line treatment for cystitis due to its targeted action against the bacteria causing urinary tract infections. Its effectiveness, combined with a favourable safety profile, makes it a preferred choice for many patients."

Buy Nitrofurantoin 100mg Modified-Release Capsules Online

Nitrofurantoin is an antibiotic primarily used in the form of 100mg modified-release capsules, ensuring a more consistent release of medication. This consistent release is particularly beneficial in providing sustained relief from symptoms and ensuring effective eradication of the infection.

What is Nitrofurantoin Used for?

Nitrofurantoin antibiotics are primarily used for treating and preventing urinary tract infections (UTIs), such as cystitis. It works effectively by killing the bacteria responsible for these infections. Symptoms of cystitis and UTIs include:

  • A burning sensation during urination
  • Frequent urge to urinate
  • Pain in the lower abdomen

In addition to UTIs, Nitrofurantoin may also be used for other bacterial infections as determined by a doctor or pharmacist.

How Does Nitrofurantoin Work?

Nitrofurantoin functions by entering the bacterial cells and interfering with their chemical processes. It inhibits the synthesis of bacterial proteins, DNA, RNA, and cell walls, leading to the bacteria’s death. This stops the infection from spreading, allowing the immune system to eliminate the remaining bacteria.

What Dose of Nitrofurantoin Modified-Release Capsules Do I Need?

The usual dose for treating UTIs in adults is either one 50mg or 100mg capsule taken twice a day for 3 days. For the prevention of further infections, a single 100mg capsule at bedtime may be recommended. Dosage may vary based on individual health conditions and the severity of the infection. Follow the prescribed dosage and do not exceed the maximum recommended dose unless advised by a doctor or pharmacist.

Who is Nitrofurantoin Suitable for?

Nitrofurantoin antibiotics are suitable for adults and children over three months of age, particularly for those diagnosed with UTIs. However, it may not be appropriate for individuals with:

  • Severe kidney disease.
  • A history of liver problems.
  • Porphyria (a blood disorder).
  • Known deficiency in the G6PD enzyme.

Pregnant women, especially in the final stages of pregnancy, and breastfeeding mothers should consult their doctor or pharmacist before using Nitrofurantoin.

How to Take Nitrofurantoin 100mg Modified-Release Capsules

  • Always take Nitrofurantoin tablets with food or milk to enhance absorption and reduce stomach upset.
  • Swallow the capsule whole with a glass of water.
  • Do not crush or chew the capsules.
  • Take the capsules at evenly spaced intervals for maximum effectiveness.

For treating cystitis, the medication is typically taken for three days. The duration may be adjusted based on the severity of the infection and the individual’s response to treatment.

Can You Buy Nitrofurantoin Online?

You can buy Nitrofurantoin 100mg online from our online cystitis treatment clinic by completing a free consultation. Once reviewed by a licensed pharmacist, we will issue your prescription and deliver the medication directly to your door in discrete packaging.

Side Effects of Nitrofurantoin 

Common Side Effects

  • Nausea and vomiting.
  • Loss of appetite.
  • Headache and dizziness.
  • Urine discolouration (dark yellow or brown).

Uncommon Side Effects

  • Lung inflammation.
  • Liver problems.
  • Changes in blood cells leading to anaemia.

Serious Side Effects

  • Severe allergic reactions.
  • Lung or liver damage.
  • Neuropathy or nerve damage.

If you experience any severe or concerning side effects, stop using Nitrofurantoin immediately and seek medical attention.

For a complete list of side effects, please read the patient information leaflet.

Long-Term Side Effects

Reports of long-term side effects include lung and liver damage, especially with prolonged use. Studies indicate these risks increase with extended treatment duration. If concerned about long-term side effects, consult with your GP or pharmacist.

Nitrofurantoin Ingredients

Active Ingredients: Nitrofurantoin.

Other Ingredients: Talc, maize starch, lactose monohydrate, gelatin, sodium lauryl sulfate, quinoline yellow (E104), and titanium dioxide (E171).

Important Information

  • Do not take Nitrofurantoin if allergic to any of its ingredients.
  • Avoid if you have severe kidney disease, G6PD enzyme deficiency, or porphyria.
  • Consult a doctor before use if pregnant, breastfeeding, or have liver disease.
  • Not recommended for infants under three months or during the final stages of pregnancy.

Nitrofurantoin 100mg Modified-Release Capsules FAQs

The typical dose of Nitrofurantoin antibiotics for treating a urinary tract infection (UTI) in adults is either one 50mg or 100mg capsule taken twice times a day for seven days.

Nitrofurantoin is highly effective for treating cystitis, with success rates in rapidly clearing infections and alleviating symptoms.

Symptoms usually improve within a few days of starting treatment, but it’s important to complete the full course of nitrofurantoin antibiotics.

In the UK, Nitrofurantoin is a prescription-only medication. You can buy Nitrofurantoin online from Click2Pharmacy’s online Cystitis clinic following a free consultation.

Alcohol consumption is not advised as it may increase the risk of liver problems and reduce the effectiveness of the medication.

If you are pregnant or breastfeeding, think you may be pregnant or are planning to have a baby, ask your doctor or pharmacist for advice before taking this medicine. As far as it is known Nitrofurantoin Capsules may be used in pregnancy.

The duration of treatment typically lasts three days for acute infections, but your doctor or pharmacist may adjust this based on your condition.

Store below 30°C in the original package, away from light and moisture. Do not use after the expiry date.

Inform your pharmacist of all medications you are taking, as Nitrofurantoin may interact with certain drugs. Always disclose your medication history during your online consultation for safety review.

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Customer Reviews

Based on 68 reviews
Ibrahim Ahsan
Ibrahim Ahsan
Very helpful staff, never had any issues with this pharmacy, 100% recommend
Julie Beardsley
Julie Beardsley
Very professional service. Just like having your very own pharmacist. Brilliant
Mohammed Khan
Mohammed Khan
Just had private bloods taken short wait time very thorough good price nice lady would recommend.
Sarah Smithies
Sarah Smithies
It is great to have somewhere local that does blood testing. The staff are lovely, helpful and experienced. They fit me in last minute. There is never a wait and the results back within a day or two.
After refusal of doctors appointment same old same old ring back etc. I was invited at 5.25 to see doctor I drove over immediately. Everything fully explained and checked over I was leaving by 6pm with penicillin for strep throat. Had I followed my doctors receptionist I would probably have suffered longer and increased the chances of a worse infection.I Great efficient service.
Lisa Lowther
Lisa Lowther
Fantastic service went for blood done very fast very friendly fantastic customer service
Nitrofurantoin 100Mg Modified-Release Capsules


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Nitrofurantoin 100Mg Modified-Release Capsules


We offer a variety of delivery options including Next day delivery. Spend over £70 for FREE delivery.

Nitrofurantoin 100Mg Modified-Release Capsules


Our pharmacy, clinic & prescribers are based in Greater Manchester.

↓ 8%
Original price was: £18.99.Current price is: £17.49.
More Information This product has multiple variants. The options may be chosen on the product page
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Original price was: £5.35.Current price is: £4.73.
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