flucloxacillin (as sodium monohydrate)
CONSUMER MEDICINE INFORMATION
What is in this leaflet
This leaflet answers some common questions about Staphylex. It does not contain all
of the available information.
It does not take the place of talking to your doctor or pharmacist.
All medicines have benefits and risks. Your doctor has weighed the risks of you taking
Staphylex against the benefits they expect it will have for you.
If you have any concerns about taking this medicine, talk to your doctor or pharmacist.
Keep this leaflet with your medicine.
You may need to read it again.
What Staphylex is used for
Staphylex contains the active ingredient flucloxacillin.
It is used to treat infections in different parts of the body caused by bacteria.
It is an antibiotic that belongs to a group of medicines called penicillins. These
medicines work by killing the bacteria that are causing your infection.
Staphylex will not work against infections caused by viruses, such as colds.
Ask your doctor if you have any questions about why this medicine has been prescribed
Your doctor may have prescribed Staphylex for another reason.
This medicine is not addictive.
It is available only with a doctor's prescription.
Before you take Staphylex
WARNING: flucloxacillin can cause severe liver damage, particularly in older patients
and those who take it for more than 14 days.
When you must not take it
Do not take Staphylex if you have an allergy to:
any medicine containing flucloxacillin
any other penicillin medicines or cephalosporins
beta-lactam antibiotics including imipenem and aztreonam
any of the ingredients listed at the end of this leaflet.
Some of the symptoms of an allergic reaction may include:
shortness of breath
wheezing or difficulty in breathing
swelling of the face, lips, tongue or any other parts of the body
rash, itching or hives on the skin
Do not take Staphylex if you have had a reaction affecting your liver while you were
taking a medicine containing flucloxacillin.
Examples of liver reactions include hepatitis and jaundice (yellowing of the eyes
Do not use this medicine in your eyes.
Do not take this medicine after the expiry date printed on the pack or if the packaging
is torn or shows signs of tampering.
If it has expired or is damaged, return to your pharmacist for disposal.
If you are not sure whether you should start taking this medicine, talk to your doctor.
Before you start to take it
Tell your doctor if you have allergies to any other medicines, foods, preservatives
Tell your doctor if you have or have had any of the following medical conditions:
jaundice, yellowing of the skin or eyes
asthma, hayfever, eczema or other allergic conditions.
Tell your doctor if you are pregnant or plan to become pregnant or are breast-feeding.
Your doctor can discuss with you the risks and benefits involved.
The active ingredient in Staphylex passes into breast milk and there is a possibility
that your baby may be affected.
If you have not told your doctor about any of the above, tell them before you start
Taking other medicines
Tell your doctor if you are taking any other medicines, including any that you buy
without a prescription from a pharmacy, supermarket or health food shop.
Tell your doctor or pharmacist if you are taking this medicine in combination with
paracetamol, particularly if you have impaired kidney function.
Some medicines and Staphylex may interfere with each other. These include:
probenecid (e.g. Pro-Cid), a medicine commonly used to treat gout
oral contraceptive pills, medicines used for contraception
You should use other birth control methods while you are taking Staphylex.
These medicines may be affected by Staphylex or may affect how well it works. You
may need different amounts of your medicine, or you may need to take different medicines.
Your doctor or pharmacist has more information on medicines to be careful with or
avoid whilst taking this medicine.
How to take Staphylex
Follow all directions given to you by your doctor or pharmacist carefully.
They may differ from the information contained in this leaflet.
If you do not understand the instructions on the box, ask your doctor or pharmacist
How much to take
Usual Adult Dose
250 mg every 6 hours
Usual Child Dose
2 to 10 years: half of the adult dose
Under 2 years: quarter of the adult dose
How to take it
Swallow the capsules whole with a full glass of water.
When to take it
Take your medicine 30 minutes to 1 hour before food.
Food can interfere with the absorption of Staphylex.
How long to take it
Continue taking your medicine until you finish the pack, or for as long as your doctor
It is important to keep taking your medicine even if you feel well.
If you forget to take it
If it is almost time for your next dose, skip the dose you missed and take your next
dose when you are meant to.
Otherwise, take the missed dose as soon as you remember, and then go back to taking
your tablets as you would normally.
Do not take a double dose to make up for the dose you missed.
If you are not sure what to do, ask your doctor or pharmacist.
If you have trouble remembering to take your medicine, ask your pharmacist for some
If you take too much (overdose)
Immediately telephone your doctor or the Poisons Information Centre (telephone 13
11 26) for advice, or go to Accident and Emergency at the nearest hospital, if you
think you or anyone else may have taken too much Staphylex. Do this even if there
are no signs of discomfort or poisoning.
You may need urgent medical attention.
Symptoms of an overdose may include diarrhoea and nausea.
While you are taking Staphylex
Things you must do
Before starting any new medicine, tell your doctor or pharmacist that you are taking
Tell all the doctors, dentists and pharmacists who are treating you that you are taking
If you become pregnant while taking this medicine, tell your doctor immediately.
Tell your doctor immediately, if your symptoms do not improve within a few days, or
if they become worse.
If you develop yellow eyes or skin (jaundice) whilst or soon after taking Staphylex
tell your doctor immediately. Do this even if it occurs several weeks after you have
stopped taking Staphylex.
Jaundice may mean that you have a serious condition affecting your liver. You may
need urgent medical care.
If you get severe diarrhoea, tell your doctor or pharmacist immediately. Do this even
if it occurs several weeks after you have stopped taking Staphylex.
Diarrhoea may mean that you have a serious condition affecting your bowel. You may
need urgent medical care. Do not take any diarrhoea medicine without checking with
If you get a sore, white mouth or tongue while taking or soon after stopping Staphylex,
tell your doctor. Also tell your doctor if you get vaginal itching or discharge.
This may mean you have a fungal infection called thrush. Sometimes, the use of Staphylex
allows fungi to grow and the above symptoms to occur. Staphylex does not work against
If you get severe skin reactions with painful red areas, large blisters, peeling of
skin layers; fever, chills, aching muscles, feeling unwell (signs of drug reaction
with eosinophilia and systemic symptoms (DRESS), and acute generalised exanthematous
pustulosis (AGEP), Stevens-Johnson Syndrome or toxic epidermal necrolysis), stop taking
this medicine immediately and tell your doctor.
If you are taking Staphylex for a long time, visit your doctor regularly so that they
can check on your progress.
You may need to have tests to check your liver and kidney function.
Things you must not do
Do not take any medicine for diarrhoea without first checking with your doctor or
Do not use Staphylex to treat any other conditions unless your doctor tells you to.
Do not give Staphylex to anyone else, even if they have the same condition as you.
Do not stop taking your medicine or lower the dosage without checking with your doctor.
If you stop taking it suddenly, your condition may worsen.
Things to be careful of
Be careful driving or operating machinery until you know how Staphylex affects you.
Things to be aware of
Staphylex can cause jaundice (yellowing of skin and/or eyes) and severe liver damage.
This is more frequent in older patients, particularly those over 55 years of age,
and those who take the medicine for more than 14 days.
Immediately contact your doctor if you notice any yellowing of your eyes or skin.
Tell your doctor or pharmacist as soon as possible if you do not feel well while you
are taking Staphylex.
Staphylex treats infections in most people, but it may have unwanted side effects
in some people.
All medicines can have side effects. Sometimes they are serious, most of the time
they are not. You may need medical treatment if you get some of the side effects.
Do not be alarmed by this list of possible side effects. You may not experience any
Ask your doctor or pharmacist to answer any questions you may have.
Tell your doctor or pharmacist if you notice any of the following and they worry you:
vomiting or an upset stomach
a mild rash
oral thrush (white, furry sore tongue and mouth)
vaginal thrush (sore and itchy vagina and/or vaginal discharge).
Tell your doctor immediately or go to Accident and Emergency at the nearest hospital
if you notice any of the following:
watery and severe diarrhoea, which may also be bloody
severe stomach cramps
tiredness, headaches, being short of breath when exercising, dizziness and looking
bleeding or bruising more easily than normal
frequent infections such as fever, chills, sore throat or mouth ulcers
yellowing of the eyes or skin (jaundice)
painful, swollen joints
aching muscles, muscle tenderness or weakness, not caused by exercise
irregular heart beat
dark or cloudy urine, blood in the urine.
The above list includes very serious side effects. You may need urgent medical attention
If any of the following happen, stop taking Staphylex and tell your doctor immediately,
or go to Accident and Emergency at the nearest hospital:
any type of skin rash, itching or hives
swelling of the face, lips, tongue or other parts of the body
shortness of breath, wheezing or troubled breathing.
Tell your doctor or pharmacist if you notice anything that is making you feel unwell.
Other side effects not listed above may also occur in some people.
After stopping Staphylex
Tell your doctor if your skin and/or eyes have turned yellow (jaundice) whilst or
soon after you finish taking Staphylex.
Tell your doctor immediately if you notice any of the following side effects, even
if they occur up to several weeks after finishing treatment with Staphylex:
watery and severe diarrhoea, which may also be bloody
severe abdominal cramps or stomach cramps
fever, in combination with one or both of the above
These are rare but serious side effects. Staphylex can change the bacteria (which
are normally present in the bowel and are harmless) to multiply and therefore cause
the above symptoms. You may need urgent medical attention.
After using Staphylex
Keep Staphylex where children cannot reach it.
A locked cupboard at least one-and-a-half metres above the ground is a good place
to store medicines.
Keep your capsules in a cool dry place where the temperature stays below 25°C.
Do not keep Staphylex or any other medicine in the bathroom or near a sink.
Do not leave Staphylex in the car or on window sills.
Heat and dampness can destroy some medicines.
If your doctor tells you to stop taking Staphylex, or your capsules have passed their
expiry date, ask your pharmacist what to do with any that are left over.
What it looks like
Staphylex comes in two strengths: Staphylex 250 and Staphylex 500.
Both are yellow and black capsules.
Each pack contains 24 capsules.
The active ingredient in Staphylex is flucloxacillin (as flucloxacillin sodium monohydrate).
each Staphylex 250 capsule contains 250 mg of flucloxacillin (as sodium monohydrate)
each Staphylex 500 capsule contains 500 mg of flucloxacillin (as sodium monohydrate).
The capsules also contain:
sodium starch glycollate
sodium lauryl sulfate
colloidal anhydrous silica
yellow Opaque size 0 (PI 12223)
yellow Opaque size 2 (PI 12364)
Staphylex is supplied by:
Alphapharm Pty Ltd
Level 1, 30 The Bond
30-34 Hickson Road
Millers Point NSW 2000
Australian registration numbers:
Staphylex 250 - Aust R 17683
Staphylex 500 - Aust R 17684
This leaflet was prepared in June 2020.