- 3-Day Antibiotic Course
- Antibiotic To Treat Urinary Tract, Kidney And Bladder Infections
- Active Ingredient: MacroBID
- Buy With Confidence From UK Registered Pharmacy
Nitrofurantoin (the active ingredient) of Macrobid is an antibiotic, used to prevent and treat infections of the bladder, kidney and other parts of the urinary tract.
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Nitrofurantoin or Macrobid is a prescription medicine which is used to treat and prevent infections of the bladder (cystitis), kidney and other parts of the urinary tract (UTIs).
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How does Nitrofurantoin work?
When Nitrofurantoin is taken, the body filters it out of your blood and into your urine. This is especially helpful if you have a urinary tract infection because it centralizes around the site of infection. However, this means that Nitrofurantoin won’t do anything for other types of infection.
How do I use Nitrofurantoin for infection?
For uncomplicated urinary tract infection (cystitis) you must take ONE tablet twice daily for 3 days.
- All tablets to be taken with water, with or without food
If you forget a pill, take it as soon as you remember unless it is near to your next dose. If this is the case, miss completely and continue to finish the dosage. Never take a double dose to make up for a missed pill.
Please note that this medicine can discolour bodily fluids such as urine.
Before taking Nitrofurantoin, you should always first consult your doctor. You should not take Nitrofurantoin if any of the following apply to you:
- infants under three months of age
- you have porphyria (blood disorder)
- you have a disease of the kidneys
- you are allergic to nitrofurantoin or any of the other ingredients in this medicine
- you are in the final stages of pregnancy (labour or delivery)
- you have G6PD (glucose-6-phosphate dehydrogenase) deficiency
- you are breastfeeding a baby with suspected or known deficiency in an enzyme called G6PD (glucose-6- phosphate-dehydrogenase)
Your prescription of Nitrofurantoin may also be affected by a number of other factors, so you should make your doctor aware if any of the following apply:
- you have false positive results on testing your urine for glucose
- you lack an enzyme called glucose-6-phosphate-dehydrogenase
- you are suffering from any illness causing severe weakness
- you have diabetes
- you have anaemia or a lack of vitamin B
- you have any disease of the lungs, liver or nervous system.
- your urine is dark yellow or brown coloured.
Like many medications with active ingredients, Nitrofurantoin can affect or be affected by other medicines. Particular medications that you may experience this with include the following:
- Medicines for infections, known as quinolones
- anhydrase inhibitors (e.g. acetazolamide)
- Medicines which slow the passage of food through the stomach
- Antacids for indigestion (e.g. magnesium trisilicate)
- Medicines for gout (e.g. probenecid or sulfinpyrazone)
- Medicines for raised pressure in the eye (glaucoma)
- Medicines which make the urine less acid
- Typhoid vaccine
If you are taking any of the above medications, then you should make your doctor aware so that they can advise whether or not Nitrofurantoin will be the best course of action for you.
The most common side effects of using Nitrofurantoin include:
- A variety of skin rashes or reactions
- Loss of appetite, stomach ache and being sick (vomiting)
- Feeling sick (nausea) and headache
- Loose stools
- Dizziness, drowsiness
- Short-term hair loss
If you do experience one or more of these side effects and they persist or worsen, then inform your doctor right away. You should also contact your doctor immediately if you experience any serious side effects, such as sudden wheezing, difficulty breathing, or swelling of the face.