The text only version may be available in large print, Braille or audio CD. For further information call emc accessibility on 0800 198 5000. The product code(s) for this leaflet is: PL 12762/0052.
MacroBID 100mg Prolonged-release Capsules
MacroBID® 100mg Prolonged-release Capsules
Keep this leaflet. You may need to read it again. If you have any further questions, ask your doctor, pharmacist or nurse.
This medicine has been prescribed for you only. Do not pass it on to others. It may harm them, even if their signs of illness are the same as yours.
If you get any side effects, talk to your doctor, pharmacist or nurse. This includes any possible side effects not listed in this leaflet. See section 4.
The product is known by the name above but will be referred to as MacroBID throughout the rest of this leaflet.
1. What MacroBID is and what it is used for
2. What you need to know before you take MacroBID
3. How to take MacroBID
4. Possible side effects
5. How to store MacroBID
6. Contents of the pack and other information
Nitrofurantoin (the active substance in MacroBID) is an antibiotic.
It is used to prevent and treat infections of the bladder, kidney and other parts of the urinary tract.
Tell your doctor if you are not sure about any of the above.
Talk to your doctor, pharmacist or nurse before taking MacroBID:
The above conditions may increase the chance of developing a side effect which causes damage to the nerves, altered sense of feeling, like pins and needles.
Tell your doctor or pharmacist if you are taking, have recently taken or might take any other medicines.
If they are taken with MacroBID their effect or the effect of MacroBID may be changed.
In particular, tell your doctor or pharmacist if you are taking any of the following medicines:
If you are in doubt about any of these medicines ask your doctor or pharmacist.
MacroBID capsules should be taken at meal times with food or milk. This will help to avoid stomach upset and also to help the absorption.
If you are pregnant or breast-feeding, 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 MacroBID may be used in pregnancy.
However, it should not be used during labour or delivery because there is a possibility that use at this stage may affect the baby.
If you want to breast feed, please consult with your doctor first.
MacroBID may cause dizziness and drowsiness. You should not drive or operate machinery if you are affected this way until such symptoms go away.
If you have been told by your doctor that you are intolerant to some sugars and have to avoid them, contact your doctor before taking this medicine.
Always take this medicine exactly as your doctor or pharmacist has told you. You should check with your doctor or pharmacist if you are not sure.
The recommended dose is:
The normal dosage depends on the type of infection you have and instructions should be written on the label provided by the pharmacist. Consult your pharmacist or doctor if these instructions are not clear.
The usual doses are:
MacroBID is not recommended for children under 12 years of age.
MacroBID should be taken with food or milk.
Your doctor will watch carefully for any effects on the liver, lungs, blood or nervous system. MacroBID may interfere with the results of some tests for glucose in the urine.
Capsules should be swallowed whole.
Consult your doctor or pharmacist immediately or go to the emergency department of the nearest hospital. Always take any left over capsules with you, as well as the container and label, so that the medical staff know what you have taken.
Do not worry. If you remember later on that day, take that day’s dose as usual. If you miss a whole day’s dose take the normal dose on the next day. Do not take a double dose to make up for a forgotten capsule. If you are not sure ask your doctor or pharmacist.
Your doctor will tell you how long to take the treatment. Do not stop earlier than you are told, even if you feel better.
If you have any further questions on the use of this medicine, ask your doctor, pharmacist or nurse.
Like all medicines, this medicine can cause side effects, although not everybody gets them. Most of them are mild and disappear when you stop taking MacroBID. If you experience any of the side effects detailed below or any other side effects, stop taking MacroBID and consult your doctor.
All medicines can cause allergic reactions although serious allergic reactions are rare. If you notice any sudden wheeziness, difficulty in breathing, swelling of the eyelids, face or lips, rash or itching (especially affecting your whole body) STOP TAKING your medicine and go to a doctor immediately.
Please note that while taking MacroBID your urine may become coloured dark yellow or brown. This is quite normal and not a reason to stop taking the medicine.
If you notice any of the following side effects consult your doctor immediately:
Rare: may affect up to 1 in 1,000 people
Not known: frequency cannot be estimated from the available data
If you get any side effects, talk to your doctor, pharmacist or nurse. This includes any possible side effects not listed in this leaflet. You can also report side effects directly via the MHRA yellow card scheme website: www.mhra.gov.uk/yellowcard or search for MHRA Yellow Card in the Google Play or Apple App Store.
By reporting side effects you can help provide more information on the safety of this medicine.
Keep this medicine out of the sight and reach of children.
Do not store above 30°C (aluminium/aluminium). Do not store above 25°C (For PVC/polyethylene/aclar/aluminium blisters).
Store in the original package to protect from light and moisture.
Do not use this medicine after the expiry date which is stated on the carton after EXP. The expiry date refers to the last day of that month.
Do not throw away any medicines via wastewater or household waste. Ask your pharmacist how to throw away medicines no longer use. These measures will help to protect the environment.
The active substance is 100mg nitrofurantoin in each capsule.
The other ingredients are talc, corn starch, lactose, carbopol, povidone, sugar and magnesium stearate. The capsule shell contains gelatin, quinoline yellow (E104), titanium dioxide (E171) and FD&C Blue No.2 (E132). The printing ink contains shellac, propylene glycol (E1520), titanium dioxide (E171) black iron oxide (E172), ammonium hydroxide (E527) and simethicone.
MacroBID 100mg capsule has an opaque blue cap and opaque yellow body and bears the monogram “GS 100”.
The capsules are available in blister strips of 14.
This leaflet was last revised in July 2023.
MacroBID is the registered trademark of Mercury Pharma Group Ltd