Consumer Medicine Information
What is in this leaflet
This leaflet answers some common questions about INVANZ. It does not contain all the
It does not take the place of talking to your doctor or pharmacist.
All medicines have risks and benefits. Your doctor has weighed the risks of you using
INVANZ against the benefits they expect it will have for you or your child.
If you have any concerns about being given this medicine, ask your doctor or pharmacist.
Keep this leaflet.
You may need to read it again.
What INVANZ is used for
INVANZ is an antibiotic used to treat infections caused by bacteria (germs).
These infections include:
infections within the abdomen (stomach)
diabetic foot infections in patients without osteomyelitis
INVANZ may also be used in patients not responding to, or unable to tolerate, other
INVANZ belongs to a class of antibiotics called carbapenems. It works by killing the
bacteria causing your infection.
Your doctor may have prescribed INVANZ for another reason.
Ask your doctor if you have any questions about why INVANZ has been prescribed for
Before you are given INVANZ
When you or your child must not be given it
Do not use INVANZ if:
you have an allergy to INVANZ or any of the ingredients listed at the end of this
you have an allergy to other antibiotics in the same class as INVANZ
you have had a serious allergic reaction (anaphylaxis) to beta-lactam antibiotics,
including penicillins or cephalosporins
the vial cap shows signs of tampering
the expiry date printed on the pack has passed
If you use this medicine after the expiry date has passed, it may not work.
Do not use INVANZ by injection into a muscle if:
you have an allergy to amide-type local anaesthetics, particularly lidocaine (lignocaine)
you are in severe shock
you have heart block
Do not use INVANZ in children under 3 months of age
The safety and effectiveness in children younger than 3 months of age have not been
Before you or your child are given it
Tell your doctor if:
1. you have or have had any medical conditions, especially the following:
seizures or fits, or a predisposition to seizures (eg brain scarring)
kidney disease, or are undergoing dialysis
bowel problems while using antibiotics or after finishing them, including severe abdominal
or stomach cramps, or watery and severe diarrhoea
2. you have allergies to other antibiotics, in particular penicillins and cephalosporins.
If you are allergic to any of these you may be allergic to INVANZ.
3. you are pregnant or intend to become pregnant
Like most medicines, INVANZ is generally not recommended during pregnancy. However,
if there is a need to consider using INVANZ during pregnancy, your doctor will discuss
the possible risks and benefits to you and your unborn baby.
4. you are breast-feeding or intend to breast-feed
Like most medicines, the use of INVANZ is generally not recommended while breast-feeding.
INVANZ is secreted into human milk.
5. you have any allergies to any other medicines or any other substances, such as foods,
preservatives or dyes
6. you are taking a medicine containing valproic acid
If you have not told your doctor about any of the above, tell them before you are
Taking other medicines
Tell your doctor if you or your child are taking any other medicines, including medicines
that you buy without a prescription from your pharmacy, supermarket or health food
Some medicines and INVANZ may interfere with each other. These include:
Sodium valproate (Epilim*), used to control different types of epilepsy and mania
These medicines may be affected by INVANZ, 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 will decide whether you should use INVANZ in combination with this medicine.
Make sure your doctor and pharmacist know about all of the medicines you are taking,
as they have more information on medicines to be careful with or avoid while taking
How INVANZ is given
INVANZ can be given in two ways:
as a slow injection into a vein, known as an intravenous infusion
as a deep injection into a large muscle, known as an intramuscular injection.
INVANZ must only be given by a doctor or nurse.
Your doctor will decide what dose and how long you or your child will receive INVANZ.
This depends on your condition and other factors, such as your kidney function. No
dose adjustment is necessary if you are elderly.
When preparing INVANZ for use, do not reconstitute or dilute in solutions containing
INVANZ is not compatible with dextrose.
If you receive too much (overdose)
If you are concerned that you or your child have received too much INVANZ, tell your
doctor, nurse or pharmacist immediately.
While you or your child are using INVANZ
Things you must do
If you develop severe diarrhoea, tell your doctor, pharmacist or nurse immediately.
Do this even if it occurs several weeks after INVANZ has been stopped.
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 first checking
with your doctor.
If you develop a severe skin reaction such as painful red areas, fluid filled bumps,
large blisters, or peeling layers of skin whilst being given INVANZ, tell your doctor
You may need urgent medical care.
Tell your doctor, nurse, or pharmacist as soon as possible if you or your child do
not feel well while you are being given INVANZ.
INVANZ helps most people with infection, but it may have unwanted side-effects in
a few 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
Ask your doctor or pharmacist to answer any questions you may have.
Do not be alarmed by this list of possible side effects. You may not experience any
While being given it
Tell your doctor or nurse if you notice any of the following and they worry you:
discomfort of the vein where you had the injection, for example pain, tenderness,
redness, swelling or firm swelling.
swelling, clotting, tenderness, swelling and inflammation
vaginal itching or redness
alterations in some laboratory blood tests, and a combination of high fever, feeling
unwell, and skin rash
These are the more common side effects of INVANZ. For the most part, these have been
INVANZ may cause dizziness or sleepiness in some patients. Make sure you know how
you react to INVANZ before you drive a car, operate machinery or do anything else
that could be dangerous if you are dizzy or sleepy.
Tell your doctor or nurse immediately if you notice any of the following:
severe abdominal cramps or stomach cramps
watery and severe diarrhoea, which may also be bloody
high temperature, also called fever
seizures or fits
shortness of breath
slow heart rate
skin rash, redness, itchiness or hives
severe skin reactions, such as painful red areas, fluid-filled bumps, large blisters,
or peeling of layers of skin have been reported for the beta-lactam class of antibiotics
formation of lump and warmth at injection site
strange or disturbing thoughts or moods (including agitation, aggression, severe confusion,
disorientation, mental status changes)
tremors or uncontrollable twitching, jerking or writhing movements
These may be serious side effects of INVANZ. You may need urgent medical attention.
Serious side effects are rare.
Also, tell your doctor if you notice:
dizziness, light-headedness or unsteady walking
unusual tiredness or weakness
sore, creamy-yellow, raised patches in the mouth (oral thrush)
These are other side effects that have been reported with INVANZ. These side effects
A few people may be allergic to some medicines. Tell your doctor or nurse immediately
if you notice any of the following. These are examples of acute allergy:
throat or chest tightness, difficulty breathing
swelling of the mouth, lips, eyes or face
flushing (sudden redness) of the face
If you or your child have these, you may have had a serious allergic reaction to INVANZ.
You may need urgent medical attention. These side effects are very rare.
After finishing it
Tell your doctor immediately if you notice any of the following side effects, particularly
if they occur several weeks after stopping treatment with INVANZ:
severe abdominal cramps or stomach cramps
watery and severe diarrhoea, which may also be bloody
fever, in combination with one or both of the above
These are rare but serious side effects. You may have a serious condition affecting
your bowel. This is because antibiotics such as INVANZ can change the type of bacteria
in the bowel. As a result, this allows bacteria, normally present in the bowel and
normally harmless, to multiply and cause the above symptoms. Therefore, you may need
urgent medical attention. However, this side effect is rare.
Do not take any diarrhoea medicine without first checking with your doctor.
Other side effects not listed above may also occur in some patients. Tell your doctor
if you notice any other effects.
INVANZ will usually be stored in the pharmacy or on the ward.
The powder for injection should be kept in a cool dry place where the temperature
stays below 25°C.
Discard any unused vials containing solution of INVANZ which has been prepared but
Vials of INVANZ are intended for single-use only. They do not contain a preservative
and there is a possibility of contamination with repeated use.
Do not freeze the solutions of INVANZ.
Use solutions of INVANZ as soon as possible after reconstitution and further dilution.
If storage is unavoidable, store the solution in the refrigerator where the temperature
is kept between 2°C to 8°C, for not more than 24 hours, and use as soon as practicable
within 4 hours after removal from the refrigerator.
As INVANZ does not contain a preservative, there is a risk that any prepared solution
that has not been stored in a refrigerator may be contaminated with germs and cause
Use the reconstituted solution immediately. If storage is unavoidable, the solution
should be kept in a refrigerator where the temperature is between 2°C to 8°C.
Do not store the solution of INVANZ for injection for more than one hour.
What it looks like
INVANZ comes as a white to off-white powder in a glass vial.
ertapenem 1 g (1.046 g as the sodium salt) per vial
INVANZ is supplied in Australia by:
Merck Sharp & Dohme (Australia) Pty Limited
A.B.N. 14 000 173 508
Level 1, Building A,
26 Talavera Road
Macquarie Park NSW 2113
This leaflet was prepared in November 2020.
Australian Register Number:
AUST R 81449.