Macrobid (Nitrofurantoin MR)

Cystitis (UTI)

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  • Macrobid (Nitrofurantoin MR)

Macrobid (Nitrofurantoin MR)

Cystitis (UTI)
  • Medication features

    Macrobid is an antibiotic treatment for urinary tract infections (UTIs). The treatment is usually a short course lasting three days but can be prescribed for 5-7 days if required depending on the severity. Macrobid is taken twice a day, one tablet in the morning and evening. It is recommended that the full course of Macrobid tablets should be completed even if symptoms have subsided to prevent a re-occurrence.

    Macrobid key information

    • Antibiotic for the treatment of UTIs
    • Simple twice daily dose
    • The branded version of Nitrofurantoin


NOTE: After selecting this product, you will need to complete a short assessment, so we can make sure this medication is suitable for you. Pricing is provided as a reference only. The final decision on issuing this medication remains with our Prescriber / Pharmacist.

Macrobid MR is a modified release preparation of nitrofurantoin, an effective antibiotic that targets bacterial infections. It is typically used to treat urinary tract infections (UTIs), such as cystitis. Macrobid tablets should help to relieve any UTI symptoms within a few days.

Macrobid works by being absorbed from your blood and into your urine. Its antibiotic properties then pass through the site of the Urinary Tract Infection (UTI), allowing Macrobid to directly target the site of infection. This means that Macrobid will not work for any other kinds of infection.

Macrobid antibiotics are not suitable for the treatment of pyelonephritis (kidney infections) or other deep tissue infections.

Pharmacy Online prescribes Macrobid 100mg, you can buy Macrobid online through our online doctor. Simply start your consultation to begin.


  • How can I manage the side effects of Macrobid?

    A common side effect of taking Macrobid can be an upset stomach. Side effects like diarrhoea can be reduced by using over the counter treatments such as Loperamide. Nausea can be prevented by taking this medication with or just after food. There are options available for vomiting such as cyclizine, promethazine, and prochlorperazine, which can be purchased here at Pharmacy Online.

  • Can I drink alcohol with Macrobid?

    Many people feel concerned about whether they should drink alcohol when taking Macrobid, but there are no negative side effects found in cases of alcohol and Macrobid combination. Therefore, it is safe to consume alcohol while taking Macrobid.

  • Does Macrobid cause thrush?

    Taking Macrobid may cause thrush, as the antibiotic (nitrofurantoin) destroys the bacteria present in the urinary tract. This bacteria is important for preventing the development of thrush, meaning that there are risks of developing thrush when taking Macrobid.

    Pharmacy Online prescribes a wide range of suitable thrush treatments to treat symptoms. Our online doctor can help advise the best treatment for you.

  • Can I use Macrobid if I’m pregnant?

    There are no risks to an unborn baby when using Macrobid. It is also safe to take Macrobid when breastfeeding.

Side Effects

Before you take Macrobid for UTI, it is important to consider possible side effects. There is a general risk of side effects with all medications. Some of these can be quite mild and can subside over time. Others are more serious and should be reported to your GP right away if you experience any side effects. Please contact a member of our team if you are concerned about any potential side effects that may occur when taking Macrobid.

Common side effects of Macrobid 100mg include: 

  • Nausea
  • Diarrhoea 
  • Headaches 
  • Lack of appetite 
  • Vomiting 
  • Abdominal pain 
  • Dark yellow or brown urine 
  • Dizziness 
  • Drowsiness

Tell your doctor if you experience any of the following side effects when taking Macrobid: 

  • Tingling, weakness or numbness in your muscles or joints 
  • Fever, chills, chest pain, coughing or shortness of the breath
  • Feeling unwell alongside unexplained bruising or bleeding and feverish symptoms
  • A severe headache 
  • Swelling in the mouth, lips, tongue or throat; difficulty breathing; a rash or tightness in the chest. This is a sign of an allergic reaction. 


Info Leaflet

Before taking Macrobid for UTIs, or any medicines, regardless of whether they are over the counter or prescription-only, it is essential always to read the patient information leaflet.

Macrobid Patient Information Leaflet