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Macrobid / Nitrofurantoin

buy Macrobid / Nitrofurantoin



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Product Details
Side Effects

Please note that since 2017, Nitrofurantoin has been the most widely prescribed first line treatment for cystitis, although some women may find either Nitrofurantoin or Trimethoprim responds better to their symptoms.

Please note, women who have taken Trimethoprim in the past year should consider Nitrofurantoin instead.

Please note, the branded Macrobid (Nitrofurantoin) capsules that Medical Specialists® supply, are manufactured in packs of 14. Therefore, you may receive a plain box with a printed patient information leaflet (PIL) if a larger pack has to split. Rest assure, Medical Specialists® only ever supply fully UK licensed medicines.

What is Nitrofurantoin for?

Nitrofurantoin is an antibiotic used to treat urinary tract infections (UTIs), such as uncomplicated cystitis. Patients must carry on taking this medicine until the course is completed, even if you feel better after the first day for example. Due to more of the bacteria that causes cystitis becoming increasingly resistant to the antibiotic Trimethoprim, Nitrofurantoin is more commonly prescribed and is considered a more effective treatment. Although Nitrofurantoin is usually the first choice for cystitis, Trimethoprim is still very effective for some women.

How does Nitrofurantoin work?

When you take Nitrofurantoin, your body quickly filters it out of your blood and into your urine. This is beneficial if you have a urinary tract infection such as cystitis as the drug will be concentrated at the site of infection. Therefore, Nitrofurantoin is not suitable for other types of infections. Nitrofurantoin may turn your urine a yellow or brown colour during your course of treatment. This is normal and a more normal colour will be visible once you have completed the treatment.

How to take Nitrofurantoin

• Adults: 100mg slow-release capsules twice daily for 3 days to treat uncomplicated cystitis.
• Improvements should be seen in 24 hours and symptoms are usually cleared after the 3 days.
• If your symptoms do not improve or are worsening after your course of treatment, consult your Doctor.

Choosing Nitrofurantoin or Trimethoprim for Cystitis

Nitrofurantoin is now the most widely prescribed first line treatment for cystitis, although some women may find either Nitrofurantoin or Trimethoprim responds better to their symptoms.
Both are effective antibiotic treatments for cystitis, although there is believed to be increasing antibiotic resistance to Trimethoprim. Up to approximately 30% of bacteria responsible for water infections are resistant to Trimethoprim.

However, some women may find one of the other treatment is more suitable for them and their infection responds better to a particular antibiotic, or they may find they experience less side effects with either Nitrofurantoin or Trimethoprim.

If you are not sure which antibiotic treatment is more suitable for you, your Doctor should be able to offer appropriate guidance.

Where can I buy Macrobid / Nitrofurantoin online?

You can buy Macrobid / Nitrofurantoin with or without a prescription at Medical Specialists, after completing a simple online consultation. Just complete an online consultation by clicking the orange button above. We are the UK’s leading online supplier of prescription medication in the UK and our pharmacy which is regulated by the Royal Pharmaceutical Society of Great Britain.

Phamarmacy Team

Ask Our Prescriber / Pharmacist

Medical Specialists® are proud of our in-house team of Prescribers, Pharmacists and Experts who carry out the online consultations, dispense medication or help our patients in other ways.

If you would like to ask one of our experts any questions regarding your medication or any other matter, then please feel free to submit your query to us and will get back to you.

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How We Package Your Order

Your medication is sealed in a plain shipping box for protection then placed inside a tamper-proof Royal Mail special delivery envelope before being dispatched from our in-house Pharmacy.

  • Discreet Plain Packaging
  • Royal Mail Special Delivery
  • No Mention of Medication

For full patient information, please read or print out the leaflet provided at the bottom of this page.


This patient information leaflet is provided for information purposes only. This leaflet information should not be used in contradiction with your Doctor or Pharmacist's advice. Medical Specialists recommend that you carefully read the information leaflet provided with your medication.  Medical Specialists will not accept liability for information displayed. Please refer to the leaflet provided with your medication for the latest manufacturer's information.


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  • Est.1994, first online Prescribers in 2001
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