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NMNitrofurantoin MR

Nitrofurantoin MR

Doctor item
From £13.99

A free online consultation is required before this treatment can be supplied.

Nitrofurantoin for UTI treatment

Nitrofurantoin is an antibiotic that is designed to combat bacterial infections of the urinary tract, offering quick relief from burning sensations, discomfort, and frequent urges to urinate.

When a urinary tract infection strikes, you need a treatment that works fast and effectively as UTIs are painful and uncomfortable. Whether you are dealing with an occasional infection or recurrent cystitis, Nitrofurantoin offers targeted action to help you feel better, sooner. 

Frequently asked questions

Can you drink alcohol with this medicine?

You can drink alcohol while taking Nitrofurantoin as there are no direct harmful interactions between the two.  However, you must consume it in moderation as drinking a lot of alcohol can delay your recovery from illness and worsen side effects such as dizziness, nausea, or drowsiness. Always follow your doctor’s advice, limit fizzy drinks, and consume alcohol in moderation to avoid adverse effects.

Can you buy Nitrofurantoin over the counter?

Nitrofurantoin is available on prescription only in the UK, meaning you cannot buy it over the counter. You will need a prescription from a doctor, GP, or online pharmacy to obtain this medication.

You can buy Nitrofurantoin MR 100mg (Macrobid) from a licensed online pharmacy after receiving a valid prescription.

Nitrofurantoin in pregnancy

You can take Nitrofurantoin for urinary tract infections including cystitis during pregnancy, especially in the first and second trimesters. However, you must avoid it in the third trimester or the last few weeks of pregnancy as it may affect your baby’s red blood cells. So, if you are pregnant and need treatment for a UTI, consult your doctor for a safe option.

Nitrofurantoin in Breastfeeding

Nitrofurantoin passes into breast milk in small amounts and is unlikely to cause side effects in your baby. So, it is safe to use it while breastfeeding.

However, it is not suitable for breastfeeding mothers of babies under 3 months old as it can increase the risk of a rare condition called hemolytic anemia in newborns. Consult your doctor to determine whether you can take it while breastfeeding or not. 

Nitrofurantoin in Fertility

There is no strong evidence that this medicine affects fertility in men or women. So, if you are trying to conceive, you can take Nitrofurantoin antibiotics for bladder infection; however, you must consult your doctor for personalized advice.

Is Nitrofurantoin a very strong antibiotic?

Nitrofurantoin is a strong antibiotic as it works against a range of bacteria in the urinary tract such as Enterococcus faecalis, E. coli, & species of Klebsiella, Staphylococcus, and Enterobacter. It is less likely to cause antibiotic resistance compared to other antibiotics. 

Can Nitrofurantoin make you feel weird?

Nitrofurantoin can make you feel weird due to its side effects such as drowsiness, dizziness, headaches, or nausea. Some feel lightheaded or discomfort, leading to mood changes or weird feelings.

Does vitamin D interact with Nitrofurantoin?

Vitamin D does not interact with Nitrofurantoin; however, it does not mean that interaction will never occur. Before taking vitamin D with Nitrofurantoin, consult your doctor to avoid adverse effects.

Can Nitrofurantoin be used for kidney infection?

Nitrofurantoin is not suitable for kidney infections (pyelonephritis) as it works in the bladder and does not reach high enough levels in the kidneys. For kidney infections, doctors may prescribe ciprofloxacin or co-amoxiclav that effectively targets deeper infections.

How long does Nitrofurantoin stay in your system?

Nitrofurantoin stays in your system for about 4-5 hours and after this, it is quickly exerted in your urine. This thing makes it more effective in treating urinary tract infections. Once you take it by mouth, most of the medicine gets filtered out of your blood and into your bladder and kidneys. In this way, this medicine directly targets the bacteria that is causing infection in the urinary tract, improving your symptoms within two days of starting treatment.

How to store Nitrofurantoin?

You must store Nitrofurantoin at a temperature between 68-77 degrees F (20-25 degrees C). moreover:

  • You can also expose it to temperatures between 59 F-86 F (15 C-30 C) for shorter periods of time, such as when transporting it.
  • Store it away from direct light, moisture, and heat.
  • Do not store in the bathrooms.
  • Do not freeze your medicine.
  • Keep it away from the reach of children and pets.
  • Dispose of outdated medicine or medicine no longer needed via the medicine take-back program to protect the environment, children, other people, and animals. 
  • Do not flush this medication down the toilet. 
  • If you still have concerns, consult your doctor for better advice. 

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Written and reviewed by our qualified team — Mr Suhail Jamil, Superintendent Pharmacist (GPhC 2069518).