Patient leaflet - FLAGYL S 200 MG / 5ML ORAL SUSPENSION, METRONIDAZOLE 200 MG / 5ML ORAL SUSPENSION
O What Flagyl is and what it is used for
The name of this medicine is Flagyl S 200mg/5ml Oral Suspension (called Flagyl in this leaflet). Flagyl contains a medicine called metronidazole benzoate. This belongs to a group of medicines called antibiotics.
It works by killing bacteria and parasites that cause infections in your body.
It can be used to:
-
Treat infections of the blood, brain, lung, bones, genital tract, pelvic area, stomach and intestines
-
Treat gum ulcers and other dental infections
-
Treat infected leg ulcers and pressure sores
-
Prevent infections after surgery
If you need any further information on your illness, speak to your doctor.
0
What you need to know before you take Flagyl
Do not take Flagyl and tell your doctor if:
-
You are allergic (hypersensitive) to metronidazole, nitroimidazoles (e.g. tinidazole) or any of the other ingredients of this medicine (listed in Section 6:)
Signs of an allergic reaction include: a rash, swallowing or breathing problems, swelling of your lips, face, throat or tongue.
Do not take Flagyl if any of the above apply to you. If you are not sure, talk to your doctor or pharmacist before taking Flagyl.
Warnings and precautions
Talk to your doctor or pharmacist before taking Flagyl if:
-
You have or have ever had a liver problem
-
You are having kidney dialysis (see section 3: ‘People having kidney dialysis’)
-
You have a disease of the nervous system
If you are not sure if any of the above apply to you, talk to your doctor or pharmacist before taking your medicine. Do this even if they have applied in the past.
Cases of severe liver toxicity/acute liver failure, including cases with a fatal outcome, in patients with Cockayne syndrome have been reported with Flagyl. If you are affected by Cockayne syndrome, your doctor should also monitor your liver function frequently while you are being treated with Flagyl and afterwards.
Serious skin reactions including Stevens-Johnson syndrome (SJS), toxic epidermal necrolysis (TEN), acute generalised exanthematous pustulosis (AGEP) have been reported with the use of Flagyl.
-
SJS/TEN can appear initially as reddish target-like spots or circular patches often with central blisters on the trunk. Also, ulcers of the mouth, throat, nose, genitals and eyes (red and swollen eyes) can occur. These serious skin rashes are often preceded by fever and/or flu-like symptoms. The rashes may progress to widespread peeling of the skin and lifethreatening complications or be fatal.
-
AGEP appears at the initiation of treatment as a red, scaly widespread rash with bumps under the skin and blisters accompanied by fever. The most common location: mainly localised on the skin folds, trunk and upper extremities
The highest risk for occurrence of serious skin reactions is within one week, typically, within 48 hours of treatment. If you develop a serious rash or another of these skin symptoms, stop taking Flagyl and contact your doctor or seek medical attention immediately.
Tell your doctor immediately and stop taking Flagyl if you develop:
-
Stomach pain, anorexia, nausea, vomiting, fever, malaise, fatigue, jaundice, dark urine, putty or mastic coloured stools or itching.
Other medicines and Flagyl
Tell your doctor or pharmacist if you are taking, have recently taken, or might take any other medicines. This includes medicines obtained without a prescription, including herbal medicines. This is because Flagyl can affect the way some other medicines work. Also, some other medicines can affect the way Flagyl works.
In particular tell your doctor if you are taking any of the following medicines: Medicines used to thin the blood such as warfarin
-
Lithium for mental illness
-
Phenobarbital or phenytoin for epilepsy
-
5 fluorouracil for cancer
-
Busulfan for leukaemia (cancer of the blood cells)
-
Ciclosporin – to prevent the rejection of organs after transplant
-
Disulfiram for alcoholism
If you are not sure, talk to your doctor or pharmacist before taking Flagyl.
Flagyl with food, drink and alcohol
Do not drink any alcohol while you are taking Flagyl and for 48 hours after finishing your course. Drinking alcohol, while using Flagyl might cause unpleasant side effects, such as feeling sick (nausea), being sick (vomiting), stomach pain, hot flushes, very fast or uneven heartbeat (palpitations) and headache.
Pregnancy and breast-feeding
Tell your doctor before using Flagyl if:
-
You are pregnant, might become pregnant or think you may be pregnant. Flagyl should not be taken during pregnancy unless considered absolutely necessary.
-
You are breast-feeding. It is better not to take Flagyl if you are breast-feeding. This is because small amounts may pass into the mother’s milk.
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 any medicine.
Driving and using machines
While taking Flagyl you may feel sleepy, dizzy, confused, see or hear things that are not there (hallucinations), have fits (convulsions) or temporary eyesight problems (such as blurred or double vision). If this happens, do not drive or use any machinery or tools.
Tests
Your doctor may wish to carry out some tests if you have been using this medicine for more than 10 days.
Flagyl contains
-
Sucrose: This is a type of sugar. If you have been told by your doctor that you cannot tolerate some sugars, talk to your doctor before taking this medicine.
-
Methyl hydroxybenzoate (E218) and propyl hydroxybenzoate (E216): These are preservatives that are added to Flagyl to make the medicine last longer. These can cause an allergic reaction in some people.
-
* Alcohol: Flagyl contains 0.8% alcohol (ethanol) by volume; this is equivalent to 32mg alcohol per 5ml dose. At high doses this could be harmful for those suffering from alcoholism, liver disease or epilepsy.
0
How to take Flagyl
Taking your medicine
Always take this medicine exactly as your doctor or pharmacist has told you. It is important to finish a full course of treatment. The length of a course will depend on your needs and the illness being treated. Check with your doctor or pharmacist if you are not sure.
-
Take Flagyl Suspension by mouth
-
The dose of Flagyl will depend on your needs and the illness being treated
-
The length of your treatment will depend on the type of illness you have and how bad it is
-
Your doctor or pharmacist may dilute your Flagyl Suspension. In this case the pharmacist’s label on the packaging will tell you how exactly much to take and how often.
The usual dose for adults and children is given below:
To treat certain bacterial infection
Adults and children over 10 years
-
* Take 10ml (400mg) of Flagyl Suspension once every 8 hours
Flagyl® S 200mg/5ml Oral Suspension
(metronidazole benzoate)
Patient Information Leaflet (continued)
Children and infants
-
Your doctor will work out how much your child should take depending on their weight
-
Repeat the dose every 8 hours
-
If your child is a baby under 8 weeks of age, your doctor will give them one daily dose or two separate doses 12 hourly
To prevent infections from happening after surgery
Children
Give your child Flagyl suspension 2–3 hours before their operation
-
* Your doctor will work out how much your child should take depending on their weight
Other types of infections
For treatment of other infections caused by parasites and some bacteria your doctor will decide how much Flagyl you need to take. This will depend on your illness and how bad it is. The pharmacist’s label on the packaging will tell you exactly how much Flagyl Suspension to take and how often.
People having kidney dialysis
Kidney dialysis removes Flagyl from your blood. If you are having kidney dialysis you must take this medicine after your dialysis treatment.
People with liver problems
Your doctor may tell you to take a lower dose or to use the medicine less often.
If you take more Flagyl than you should
If you take more Flagyl than you should, tell your doctor or go to your nearest hospital casualty department straight away. Take the carton and bottle with you. This is so the doctor knows what you have taken.
If you forget to take Flagyl
If you forget to take Flagyl, take it as soon as you remember. However, if it is almost time for your next dose, skip the missed dose. Do not take a double dose to make up for a forgotten dose.
If you have any further questions on this use of this medicine, ask your doctor or pharmacist.
0
Possible side effects
Like all medicines, this medicine can cause side effects, although not everybody gets them.
Stop taking Flagyl and see a doctor or go to a hospital straight away if: You get swelling of the hands, feet, ankles, face, lips or throat which may cause difficulty in swallowing or breathing. You could also notice an itchy, lumpy rash (hives) or nettle rash (urticaria)
This may mean you are having an allergic reaction to Flagyl.
-
A serious but very rare side effect is a brain disease (encephalopathy). Symptoms vary but you might get a fever, stiff neck, headache, see or hear things that aren’t there. You might also have problems using your arms and legs, problems with speaking or feel confused.
-
You develop skin rashes including Stevens-Johnson syndrome, toxic epidermal necrolysis. These can appear as reddish target-like spots or circular patches often with central blisters on the trunk, skin peeling, ulcers of the mouth, throat, nose genitals and eyes and can be preceded by fever and flu-like symptoms. Stop using Flagyl if you develop these symptoms and contact your doctor or seek medical attention immediately. See also section 2.
-
You develop a red, scaly widespread rash with bumps under the skin and blisters accompanied by fever at the initiation of treatment (acute generalised exanthematous pustulosis). Stop using Flagyl if you develop these symptoms and contact your doctor or seek medical attention immediately. See also section 2.
Talk to your doctor straight away if you notice the following side effects.
-
Yellowing of the skin and eyes. This could be due to a liver problem (jaundice).
-
Unexpected infections, mouth ulcers, bruising, bleeding gums, or severe tiredness. This could be caused by a blood problem.
-
Severe stomach pain which may reach through to your back (pancreatitis)
Tell your doctor or pharmacist if you notice any of the following side effects:
Very rare (affects less than 1 in 10 000 people)
-
Fits (convulsions)
-
Mental problems such as feeling confused and seeing or hearing things that are not there (hallucinations)
-
Problems with your eyesight such as blurred or double vision
-
Skin rash or flushing
-
Headache
-
Darkening of the urine
-
Feeling sleepy or dizzy
-
Pains in the muscles or joints
-
Liver problems including life-threatening liver failure (hepatocellular liver injury)
Not known (frequency cannot be estimated from the available data)
-
Numbness, tingling, pain, or a feeling of weakness, in the arms or legs
-
Unpleasant taste in the mouth
-
Furred tongue
-
Feeling sick (nausea), being sick (vomiting), upset stomach, stomach pain or diarrhoea
-
Loss of appetite
-
Fever
-
Feeling depressed
-
Pain in your eyes (optic neuritis)
-
A group of symptoms together including: fever, nausea, vomiting, headache, stiff neck and extreme sensitivity to bright light. This may be caused by an inflammation of the membranes that cover the brain and spinal cord (meningitis)
-
Hearing impairment/hearing loss
-
Ringing in the ears (tinnitus)
-
You get a rash or skin discolouration with or without raised areas which often reoccurs at the same location each time the drug is taken
Reporting of side effects
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 Yellow Card Scheme at: 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.
0
How to store Flagyl
-
Keep out of the sight and reach of children
-
Do not store above 25oC
-
Store in the original package to protect from light
-
Do not use this medicine after the expiry date shown on the bottle label and packaging.
-
If your medicine becomes discoloured or shows any other signs of deterioration, consult your pharmacist who will tell you what to do.
-
Medicines should not be disposed of via waste water or household waste. Ask your pharmacist how to dispose of medicines you no longer require or medicines that have expired. These measures will help to protect the environment.
0
Contents of the pack and other information
What this medicine contains:
Each 5ml of suspension contains 200mg metronidazole (as benzoate).
The other ingredients are: sodium dihydrogen phosphate dihydrate, methyl hydroxybenzoate (E218), propyl hydroxybenzoate (E216), alcohol 96%, sucrose, aluminium magnesium silicate, lemon flavour, orange flavour unspecified and purified water
What this medicine looks like and contents of the pack
Flagyl is a white to cream suspension with a slightly yellow tinge with an odour of orange and lemon. It comes in an amber glass bottle containing 100ml with a HDPE/polypropylene child resistant cap with a tamper evident band. Also includes a plastic measuring cup.
Manufacturer and Licence Holder
This medicine is manufactured by Unither Liquid Manufacturing, F-31770 Colomiers, France and is procured from within the EU and repackaged by the Product Licence Holder: Lexon (UK) Limited, Unit 18, Oxleasow Road, East Moons Moat, Redditch, Worcestershire, B98 0RE.
Flagyl is a registered trademark of Aventis Pharma.
POM PL 15184/1855
Revision date: 11/06/21
Blind or partially sighted?
Is this leaflet hard to see or read?
Phone Lexon (UK) Limited,
Tel: 01527 505414 to obtain the leaflet
in a format suitable for you
Patient Information Leaflet
Read all of this leaflet carefully before you start taking this medicine because it contains important infromation for you.
-
Keep this leaflet. You may need to read it again.
-
If you have further questions, please ask your doctor or pharmacist.
-
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 or pharmacist. This includes any possible side effects not listed in this leaflet. See section 4.
What is in this leaflet:
0 what metronidazole is and what it is used for
Q What you need to know before you take Metronidazole
-
0 How to take Metronidazole
-
0 Possible side effects
Q How to store Metronidazole
0 contents of the pack and other information
o What Metronidazole is and what it is used for
The name of this medicine is Metronidazole 200mg/5ml Oral Suspension (called Metronidazole in this leaflet). Metronidazole contains a medicine called metronidazole benzoate. This belongs to a group of medicines called antibiotics.
It works by killing bacteria and parasites that cause infections in your body.
It can be used to:
-
Treat infections of the blood, brain, lung, bones, genital tract, pelvic area, stomach and intestines
-
Treat gum ulcers and other dental infections
-
Treat infected leg ulcers and pressure sores
-
Prevent infections after surgery
If you need any further information on your illness, speak to your doctor.
Q
What you need to know before you take Metronidazole
Do not take Metronidazole and tell your doctor if:
-
You are allergic (hypersensitive) to metronidazole, nitromidazoles (e.g. tinidazole) or any of the other ingredients of this medicine (listed in Section 6:).
Signs of an allergic reaction include: a rash, swallowing or breathing problems, swelling of your lips, face, throat or tongue.
Do not take Metronidazole if any of the above apply to you. If you are not sure, talk to your doctor or pharmacist before taking Metronidazole.
Warnings and precautions
Talk to your doctor or pharmacist before taking Metronidazole
-
You have or have evr had a liver problem.
-
You are having kidney dialysis (see section 3: ‘People having kidney dialysis’)
-
You have a disease of the nervous system
If you are not sure if any of the above apply, talk to your doctor or pharmacist before taking your medicine. Do this even if they have applied in the past.
Cases of severe liver toxicity/acute liver failure, including cases with a fatal outcome, in patients with Cockayne syndrome have been reported with Metronidazole. If you are affected by Cockayne syndrome, your doctor should also monitor your liver function frequently while you are being treated with Metronidazole and afterwards.
Serious skin reactions including Stevens-Johnson syndrome (SJS), toxic epidermal necrolysis (TEN), acute generalised exanthematous pustulosis (AGEP) have been reported with the use of Metronidazole.
-
SJS/TEN can appear initially as reddish target-like spots or circular patches often with central blisters on the trunk. Also, ulcers of the mouth, throat, nose, genitals and eyes (red and swollen eyes) can occur. These serious skin rashes are often preceded by fever and/or flu-like symptoms. The rashes may progress to widespread peeling of the skin and lifethreatening complications or be fatal.
-
AGEP appears at the initiation of treatment as a red, scaly widespread rash with bumps under the skin and blisters accompanied by fever. The most common location: mainly localised on the skin folds, trunk and upper extremities
The highest risk for occurrence of serious skin reactions is within one week, typically, within 48 hours of treatment. If you develop a serious rash or another of these skin symptoms, stop taking Metronidazole and contact your doctor or seek medical attention immediately.
Tell your doctor immediately and stop taking Metronidazole if you develop: Stomach pain, anorexia, nausea, vomiting, fever, malaise, fatigue, jaundice, dark urine, putty or mastic coloured stools or itching.
Other medicines and Metronidazole
Tell your doctor or pharmacist if you are taking, have recently taken, or might take any other medicines. This includes medicines obtained without a prescription, including herbal medicines. This is because Metronidazole can affect the way some other medicines work. Also some other medicines can affects the way Metronidazole works.
In particular tell your doctor if you are taking any of the following medicines:
-
Medicines used to thin the blood such as warfarin
-
Lithium for mental illness
-
Phenobarbital or phenytoin for epilepsy
-
5 fluorouracil for cancer
-
Busulfan for leukaemia (cancer of the blood cells)
-
Ciclosporin – to prevent the rejection of organs after transplant
-
Disulfiram for alcoholism
If you are not sure, talk to your doctor or pharmacist before taking Metronidazole.
Metronidazole with food, drink and alcohol
Do not drink any alcohol while you are taking Metronidazole and for 48 hours after finishing your course. Drinking alcohol while using Metronidazole might cause unpleasant side effects, such as feeling sick (nausea), being sick (vomiting), stomach pain, hot flushes, very fast or uneven heartbeat (palpitations) and headache.
Pregnancy and breast-feeding
Tell your doctor before using Metronidazole if:
-
You are pregnant, might become pregnant or think you may be pregnant. Metronidazole should not be taken during pregnancy unless considered absolutely necessary.
-
You are breast-feeding. It is better not to take Metronidazole if you are breast-feeding. This is because small amounts may pass into the mother’s milk.
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 any medicine.
Driving and using machines
While taking Metronidazole you may feel sleepy, dizzy, confused, see or hear things that are not there (hallucinations), have fits (convulsions) or temporary eyesight problems (such as blurred or double vision). If this happens, do not drive or use any machinery or tools.
Tests
Your doctor may wish to carry out some tests if you have been using this medicine for more than 10 days.
Metronidazole contains
-
Sucrose: This is a type of sugar. If you have been told by your doctor that you cannot tolerate some sugars, talk to your doctor before taking this medicine.
-
Methyl hydroxybenzoate (E218) and propyl hydrooxybenzoate (E216):
These arepreservatives that are added to Metronidazole to make the medicine last longer. These can cause an allergic reaction in some people.
-
* Alcohol: Metronidazole contains 0.8% alcohol (ethanol) by volume; this is equivalent to 32mg alcohol per 5ml dose. At high doses this could be harmful for those suffering from alcoholism, liver disease or epilepsy.
0
How to take Metronidazole
Taking your medicine
Always take this medicine exactly as your doctor or pharmacist has told you. It is important to finish a full course of treatment. The length of a course will depend on your needs and illness being treated. Check with your doctor or pharmacist if you are not sure.
-
Take Metronidazole Suspension by mouth
-
The dose of Metronidazole will depend on your needs and the illness being treated
-
The length of your treatment will depend on the type of illness you have and how bad it is
-
Your doctor or pharmacist may dilute your Metronidazole Suspension. In this case the pharmacist’s label on the packaging will tell you how exactly much to take and how often.
The usual dose for adults and children is given below:
To treat certain bacterial infection
Adults and children over 10 years
-
Take 10ml (400mg) of Metronidazole Suspension once every 8 hours
Children and infants
-
Your doctor will work out how much your child should take depending on their weight
-
Repeat the dose every 8 hours
Patient Information Leaflet (continued)
-
If your child is a baby under 8 weeks of age, your doctor will give them one daily dose or two separate doses 12 hourly
To prevent infections from happening after surgery Children
-
Give your child Metronidazole suspension 2–3 hours before their operation
-
Your doctor will work out how much your child should take depending on their weight
Other types of infections
For treatment of other infections caused by parasites and some bacteria your doctor will decide how much Metronidazole you need to take. This will depend on your illness and how bad it is. The pharmacist’s label on the packaging will tell you exactly how much Metronidazole Suspension to take and how often.
People having kidney dialysis
Kidney dialysis removes Metronidazole from your blood. If you are having kidney dialysis you must take this medicine after your dialysis treatment.
People with liver problems
Your doctor may tell you to take a lower dose or to use the medicine less often.
If you take more Metronidazole than you should
If you take more Metronidazole than you should, tell your doctor or go to your nearest hospital casualty department straight away. Take the carton and bottle with you. This is so the doctor knows what you have taken.
If you forget to take Metronidazole
If you forget to take Metronidazole, take it as soon as you remember. However, if it is almost time for your next dose, skip the missed dose. Do not take a double dose to make up for a forgotten dose.
If you have any further questions on this use of this medicine, ask your doctor or pharmacist.
0
Possible side effects
Like all medicines, this medicine can cause side effects, although not everybody gets them.
Stop taking Metronidazole and see a doctor or go to a hospital straight away if:
-
You get swelling of the hands, feet, ankles, face, lips or throat which may cause difficulty in swallowing or breathing. You could also notice an itchy, lumpy rash (hives) or nettle rash (urticaria) This may mean you are having an allergic reaction to Metronidazole.
-
A serious but very rare side effect is a brain disease (encephalopathy). Symptoms vary but you might get a fever, stiff neck, headache, see or hear things that aren’t there. You might also have problems using your arms and legs, problems with speaking or feel confused.
-
You develop skin rashes including Stevens-Johnson syndrome, toxic epidermal necrolysis. These can appear as reddish target-like spots or circular patches often with central blisters on the trunk, skin peeling, ulcers of the mouth, throat, nose genitals and eyes and can be preceded by fever and flu-like symptoms. Stop using Metronidazole if you develop these symptoms and contact your doctor or seek medical attention immediately. See also section 2.
-
You develop a red, scaly widespread rash with bumps under the skin and blisters accompanied by fever at the initiation of treatment (acute generalised exanthematous pustulosis). Stop using Metronidazole if you develop these symptoms and contact your doctor or seek medical attention immediately. See also section 2.
Talk to your doctor straight away if you notice the following side effects.
-
Yellowing of the skin and eyes. This could be due to a liver problem (jaundice).
-
Unexpected infections, mouth ulcers, bruising, bleeding gums, or severe tiredness. This could be caused by a blood problem.
-
Severe stomach pain which may reach through to your back (pancreatitis)
Tell your doctor or pharmacist if you notice any of the following side effects:
Very rare (affects less than 1 in 10 000 people)
-
Fits (convulsions)
-
Mental problems such as feeling confused and seeing or hearing things that are not there (hallucinations)
-
Problems with your eyesight such as blurred or double vision
-
Skin rash or flushing
-
Headache
-
Darkening of the urine
-
Feeling sleepy or dizzy
-
Pains in the muscles or joints
-
Liver problems including life-threatening liver failure (hepatocellular liver injury)
Not known (frequency cannot be estimated from the available data)
-
Numbness, tingling, pain, or a feeling of weakness, in the arms or legs
-
Unpleasant taste in the mouth
-
Furred tongue
-
Feeling sick (nausea), being sick (vomiting), upset stomach, stomach pain or diarrhoea
-
Loss of appetite
-
Fever
-
Feeling depressed
-
Pain in your eyes (optic neuritis)
-
A group of symptoms together including: fever, nausea, vomiting, headache, stiff neck and extreme sensitivity to bright light. This may be caused by an inflammation of the membranes that cover the brain and spinal cord (meningitis)
-
Hearing impairment/hearing loss
-
Ringing in the ears (tinnitus)
-
You get a rash or skin discolouration with or without raised areas which often reoccurs at the same location each time the drug is taken
Reporting of side effects
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 Yellow Card Scheme at: 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.
0
How to store Metronidazole
-
Keep out of the sight and reach of children
-
Do not store above 25oC
-
Store in the original package to protect from light
-
Do not use this medicine after the expiry date shown on the bottle label and packaging.
-
If your medicine becomes discoloured or shows any other signs of deterioration, consult your pharmacist who will tell you what to do.
-
Medicines should not be disposed of via waste water or household waste. Ask your pharmacist how to dispose of medicines you no longer require or medicines that have expired. These measures will help to protect the environment.
What this medicine looks like and contents of the pack
Flagyl is a white to cream suspension with a slightly yellow tinge with an odour of orange and lemon. It comes in an amber glass bottle containing 100ml with a HDPE/polypropylene child resistant cap with a tamper evident band. Also includes a plastic measuring cup.
Manufacturer and Licence Holder
This medicine is manufactured by Unither Liquid Manufacturing, F-31770 Colomiers, France and is procured from within the EU and repackaged by the Product Licence Holder: Lexon (UK) Limited, Unit 18, Oxleasow Road, East Moons Moat, Redditch, Worcestershire, B98 0RE.
Flagyl is a registered trademark of Aventis Pharma.
POM PL 15184/1855
Revision date: 11/06/21
Blind or partially sighted?
Is this leaflet hard to see or read?
Phone Lexon (UK) Limited,
Tel: 01527 505414 to obtain the leaflet
in a format suitable for you
Patient Information Leaflet
Read all of this leaflet carefully before you start taking this medicine because it contains important infromation for you.
-
Keep this leaflet. You may need to read it again.
-
If you have further questions, please ask your doctor or pharmacist.
-
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 or pharmacist. This includes any possible side effects not listed in this leaflet. See section 4.
What is in this leaflet:
0 what metronidazole is and what it is used for
Q What you need to know before you take Metronidazole
-
0 How to take Metronidazole
-
0 Possible side effects
Q How to store Metronidazole
0 contents of the pack and other information
o What Metronidazole is and what it is used for
The name of this medicine is Metronidazole 200mg/5ml Oral Suspension (called Metronidazole in this leaflet). Metronidazole contains a medicine called metronidazole benzoate. This belongs to a group of medicines called antibiotics.
It works by killing bacteria and parasites that cause infections in your body.
It can be used to:
-
Treat infections of the blood, brain, lung, bones, genital tract, pelvic area, stomach and intestines
-
Treat gum ulcers and other dental infections
-
Treat infected leg ulcers and pressure sores
-
Prevent infections after surgery
If you need any further information on your illness, speak to your doctor.
Q What you need to know before you take Metronidazole
Do not take Metronidazole and tell your doctor if:
-
You are allergic (hypersensitive) to metronidazole, nitromidazoles (e.g. tinidazole) or any of the other ingredients of this medicine (listed in Section 6:).
Signs of an allergic reaction include: a rash, swallowing or breathing problems, swelling of your lips, face, throat or tongue.
Do not take Metronidazole if any of the above apply to you. If you are not sure, talk to your doctor or pharmacist before taking Metronidazole.
Warnings and precautions
Talk to your doctor or pharmacist before taking Metronidazole
-
You have or have evr had a liver problem.
-
You are having kidney dialysis (see section 3: ‘People having kidney dialysis’)
-
You have a disease of the nervous system
If you are not sure if any of the above apply, talk to your doctor or pharmacist before taking your medicine. Do this even if they have applied in the past.
Cases of severe liver toxicity/acute liver failure, including cases with a fatal outcome, in patients with Cockayne syndrome have been reported with Metronidazole. If you are affected by Cockayne syndrome, your doctor should also monitor your liver function frequently while you are being treated with Metronidazole and afterwards.
Serious skin reactions including Stevens-Johnson syndrome (SJS), toxic epidermal necrolysis (TEN), acute generalised exanthematous pustulosis (AGEP) have been reported with the use of Metronidazole.
-
SJS/TEN can appear initially as reddish target-like spots or circular patches often with central blisters on the trunk. Also, ulcers of the mouth, throat, nose, genitals and eyes (red and swollen eyes) can occur. These serious skin rashes are often preceded by fever and/or flu-like symptoms. The rashes may progress to widespread peeling of the skin and lifethreatening complications or be fatal.
-
AGEP appears at the initiation of treatment as a red, scaly widespread rash with bumps under the skin and blisters accompanied by fever. The most common location: mainly localised on the skin folds, trunk and upper extremities
The highest risk for occurrence of serious skin reactions is within one week, typically, within 48 hours of treatment. If you develop a serious rash or another of these skin symptoms, stop taking Metronidazole and contact your doctor or seek medical attention immediately.
Tell your doctor immediately and stop taking Metronidazole if you develop: Stomach pain, anorexia, nausea, vomiting, fever, malaise, fatigue, jaundice, dark urine, putty or mastic coloured stools or itching.
Other medicines and Metronidazole
Tell your doctor or pharmacist if you are taking, have recently taken, or might take any other medicines. This includes medicines obtained without a prescription, including herbal medicines. This is because Metronidazole can affect the way some other medicines work. Also some other medicines can affects the way Metronidazole works.
In particular tell your doctor if you are taking any of the following medicines:
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Medicines used to thin the blood such as warfarin
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Lithium for mental illness
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Phenobarbital or phenytoin for epilepsy
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5 fluorouracil for cancer
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Busulfan for leukaemia (cancer of the blood cells)
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Ciclosporin – to prevent the rejection of organs after transplant
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Disulfiram for alcoholism
If you are not sure, talk to your doctor or pharmacist before taking Metronidazole.
Metronidazole with food, drink and alcohol
Do not drink any alcohol while you are taking Metronidazole and for 48 hours after finishing your course. Drinking alcohol while using Metronidazole might cause unpleasant side effects, such as feeling sick (nausea), being sick (vomiting), stomach pain, hot flushes, very fast or uneven heartbeat (palpitations) and headache.
Pregnancy and breast-feeding
Tell your doctor before using Metronidazole if:
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You are pregnant, might become pregnant or think you may be pregnant. Metronidazole should not be taken during pregnancy unless considered absolutely necessary.
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You are breast-feeding. It is better not to take Metronidazole if you are breast-feeding. This is because small amounts may pass into the mother’s milk.
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 any medicine.
Driving and using machines
While taking Metronidazole you may feel sleepy, dizzy, confused, see or hear things that are not there (hallucinations), have fits (convulsions) or temporary eyesight problems (such as blurred or double vision). If this happens, do not drive or use any machinery or tools.
Tests
Your doctor may wish to carry out some tests if you have been using this medicine for more than 10 days.
Metronidazole contains
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Sucrose: This is a type of sugar. If you have been told by your doctor that you cannot tolerate some sugars, talk to your doctor before taking this medicine.
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Methyl hydroxybenzoate (E218) and propyl hydrooxybenzoate (E216):
These arepreservatives that are added to Metronidazole to make the medicine last longer. These can cause an allergic reaction in some people.
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Alcohol: Metronidazole contains 0.8% alcohol (ethanol) by volume; this is equivalent to 32mg alcohol per 5ml dose. At high doses this could be harmful for those suffering from alcoholism, liver disease or epilepsy.
0 How to take Metronidazole
Taking your medicine
Always take this medicine exactly as your doctor or pharmacist has told you. It is important to finish a full course of treatment. The length of a course will depend on your needs and illness being treated. Check with your doctor or pharmacist if you are not sure.
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Take Metronidazole Suspension by mouth
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The dose of Metronidazole will depend on your needs and the illness being treated
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The length of your treatment will depend on the type of illness you have and how bad it is
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Your doctor or pharmacist may dilute your Metronidazole Suspension. In this case the pharmacist’s label on the packaging will tell you how exactly much to take and how often.
The usual dose for adults and children is given below:
To treat certain bacterial infection
Adults and children over 10 years
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Take 10ml (400mg) of Metronidazole Suspension once every 8 hours
Children and infants
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Your doctor will work out how much your child should take depending on their weight
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Repeat the dose every 8 hours
Patient Information Leaflet (continued)
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If your child is a baby under 8 weeks of age, your doctor will give them one daily dose or two separate doses 12 hourly
To prevent infections from happening after surgery Children
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Give your child Metronidazole suspension 2–3 hours before their operation
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Your doctor will work out how much your child should take depending on their weight
Other types of infections
For treatment of other infections caused by parasites and some bacteria your doctor will decide how much Metronidazole you need to take. This will depend on your illness and how bad it is. The pharmacist’s label on the packaging will tell you exactly how much Metronidazole Suspension to take and how often.
People having kidney dialysis
Kidney dialysis removes Metronidazole from your blood. If you are having kidney dialysis you must take this medicine after your dialysis treatment.
People with liver problems
Your doctor may tell you to take a lower dose or to use the medicine less often.
If you take more Metronidazole than you should
If you take more Metronidazole than you should, tell your doctor or go to your nearest hospital casualty department straight away. Take the carton and bottle with you. This is so the doctor knows what you have taken.
If you forget to take Metronidazole
If you forget to take Metronidazole, take it as soon as you remember. However, if it is almost time for your next dose, skip the missed dose. Do not take a double dose to make up for a forgotten dose.
If you have any further questions on this use of this medicine, ask your doctor or pharmacist.
0 Possible side effects
Like all medicines, this medicine can cause side effects, although not everybody gets them.
Stop taking Metronidazole and see a doctor or go to a hospital straight away if:
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You get swelling of the hands, feet, ankles, face, lips or throat which may cause difficulty in swallowing or breathing. You could also notice an itchy, lumpy rash (hives) or nettle rash (urticaria) This may mean you are having an allergic reaction to Metronidazole.
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A serious but very rare side effect is a brain disease (encephalopathy). Symptoms vary but you might get a fever, stiff neck, headache, see or hear things that aren’t there. You might also have problems using your arms and legs, problems with speaking or feel confused.
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You develop skin rashes including Stevens-Johnson syndrome, toxic epidermal necrolysis. These can appear as reddish target-like spots or circular patches often with central blisters on the trunk, skin peeling, ulcers of the mouth, throat, nose genitals and eyes and can be preceded by fever and flu-like symptoms. Stop using Metronidazole if you develop these symptoms and contact your doctor or seek medical attention immediately. See also section 2.
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You develop a red, scaly widespread rash with bumps under the skin and blisters accompanied by fever at the initiation of treatment (acute generalised exanthematous pustulosis). Stop using Metronidazole if you develop these symptoms and contact your doctor or seek medical attention immediately. See also section 2.
Talk to your doctor straight away if you notice the following side effects.
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Yellowing of the skin and eyes. This could be due to a liver problem (jaundice).
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Unexpected infections, mouth ulcers, bruising, bleeding gums, or severe tiredness. This could be caused by a blood problem.
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Severe stomach pain which may reach through to your back (pancreatitis)
Tell your doctor or pharmacist if you notice any of the following side effects:
Very rare (affects less than 1 in 10 000 people)
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Fits (convulsions)
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Mental problems such as feeling confused and seeing or hearing things that are not there (hallucinations)
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Problems with your eyesight such as blurred or double vision
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Skin rash or flushing
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Headache
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Darkening of the urine
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Feeling sleepy or dizzy
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Pains in the muscles or joints
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Liver problems including life-threatening liver failure (hepatocellular liver injury)
Not known (frequency cannot be estimated from the available data)
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Numbness, tingling, pain, or a feeling of weakness, in the arms or legs
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Unpleasant taste in the mouth
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Furred tongue
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Feeling sick (nausea), being sick (vomiting), upset stomach, stomach pain or diarrhoea
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Loss of appetite
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Fever
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Feeling depressed
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Pain in your eyes (optic neuritis)
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A group of symptoms together including: fever, nausea, vomiting, headache, stiff neck and extreme sensitivity to bright light. This may be caused by an inflammation of the membranes that cover the brain and spinal cord (meningitis)
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Hearing impairment/hearing loss
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Ringing in the ears (tinnitus)
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You get a rash or skin discolouration with or without raised areas which often reoccurs at the same location each time the drug is taken
Reporting of side effects
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 Yellow Card Scheme at: 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.
0 How to store Metronidazole
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Keep out of the sight and reach of children
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Do not store above 25oC
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Store in the original package to protect from light
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Do not use this medicine after the expiry date shown on the bottle label and packaging.
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If your medicine becomes discoloured or shows any other signs of deterioration, consult your pharmacist who will tell you what to do.
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* Medicines should not be disposed of via waste water or household waste. Ask your pharmacist how to dispose of medicines you no longer require or medicines that have expired. These measures will help to protect the environment.