Patient
Information Leaflet for Hepatyrix®
Vaccine
(Combined inactivated hepatitis A and
Vi polysaccharide typhoid vaccine)
Read
all of this leaflet carefully before you start
receiving this vaccine.
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Keep this leaflet. You may need to read it
again.
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If you have further questions, please ask your
doctor or your pharmacist.
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This vaccine has been prescribed for you and
should not be passed on to others.
In this leaflet:
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1. What Hepatyrix is and what it is used for
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2. Before you receive Hepatyrix
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3. How Hepatyrix is given
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4. Possible side effects
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5. Storing Hepatyrix
The full name of your vaccine is
Hepatyrix
Hepatitis A (inactivated, adsorbed) and Typhoid
Polysaccharide vaccine.
Each 1
millilitre dose of Hepatyrix contains the following
active ingredients:
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25 micrograms (a very small amount) of the Vi
polysaccharide antigen (a part of the
Salmonella typhi
(Ty2 strain) bacterium which causes typhoid
fever)
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1440 ELISA units of inactivated hepatitis A
virus (HM175 strain) grown on MRC-5 cells. The
purified virus has been treated with a chemical
called formaldehyde to prevent it from causing
hepatitis A infection. In order to increase its
effectiveness, the hepatitis A virus has been
attached to a very small amount of aluminium
hydroxide (0.5 milligrams of aluminium)
Hepatyrix may also contain small amounts of
neomycin, which is an antibiotic.
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The other inactive ingredients in the vaccine
are: sodium chloride, water for injections.
1. WHAT
HEPATYRIX IS AND WHAT IT IS USED FOR
Hepatyrix is
presented as a white and milky suspension. It is
provided in single dose (1 ml) glass prefilled syringes.
Hepatyrix is
available in packs of 1 and 10, with or without needles.
Hepatyrix is
a vaccine that can be given to adults and teenagers from
15 years of age and above. The vaccine is used to help
prevent two infectious diseases: hepatitis A and typhoid
fever. The vaccine works by causing the body to produce
its own protection (antibodies) against these infectious
diseases.
Hepatitis A
is an infectious illness of the liver caused by a virus.
Typhoid
fever is an infectious illness caused by a type of
bacteria called Salmonella typhi.
Both diseases are caught and spread by eating or
drinking contaminated food or water.
Since the
hepatitis A virus and typhoid bacterium are present in
the stools, the diseases can occur in any country, but
they more commonly occur in places or countries with
poor standards of personal or public hygiene. The main
signs of hepatitis A infection include a headache,
fever, sickness and jaundice (yellowing of the skin and
eyes). Most patients usually get better in a few weeks,
but it may take some months to make a full recovery.
Rarely, hepatitis A infection can also cause serious
liver disease and very rarely death. Hepatyrix can only
help to protect you against infections with hepatitis A
virus. It cannot protect you against other infections
that can affect the liver that can cause symptoms
similar to those of hepatitis A infections.
The main
signs of typhoid fever include headache, pains in the
stomach, constipation or diarrhoea, fever and, in some
people, a rash. Patients normally get better after about
four weeks, but relapses can occur. If it is not treated
properly, typhoid can also be fatal. Hepatyrix can only
protect you against typhoid fever. It cannot protect you
against paratyphoid fever or infections with other
salmonella bacteria that can cause food poisoning.
Hepatyrix
does not contain live viruses or live bacteria and it
cannot cause hepatitis A or typhoid fever.
If you have
already been infected with hepatitis A virus before you
have Hepatyrix, but you are not yet feeling unwell, the
vaccine may not be able to prevent you becoming ill.
Remember that no vaccine can provide complete, life long
protection in all people vaccinated.
2.
BEFORE YOU RECEIVE HEPATYRIX
Hepatyrix is only suitable for people
who are at least 15 years old.
Hepatyrix must not be given if the
answer to any of the following questions for the person
who is going to have Hepatyrix is "YES".
If you are not sure about anything,
ask your doctor or nurse before Hepatyrix is given to
you.
- Have
you previously had any allergic reaction to
Hepatyrix, or any ingredient contained in this
vaccine? The active substances and other ingredients
in Hepatyrix are listed at the beginning of the
leaflet. Signs of an allergic reaction may include
itchy skin rash, shortness of breath and swelling of
the face or tongue.
- Are
you known to be allergic to neomycin?
- Have
you previously had an allergic reaction to any
vaccine against hepatitis A or typhoid fever
diseases?
- Do
you have a severe infection with a high temperature?
In these cases, the vaccination will be postponed
until you have recovered. A minor infection such as
a cold should not be a problem, but talk to your
doctor first.
If, for you or the person who is
having the vaccine, the answer to any of the following
questions is yes, Hepatyrix may or may not be suitable.
Your doctor or nurse will advise you.
- do
you have a poor immune response because you have
had, or are having a course of treatment such as
corticosteroids, cytotoxic drugs or radiotherapy?
Your doctor or nurse may want to wait until the
course of treatment has finished.
- do
you have problems with your immune system due to
AIDS or have you had a positive test for human
immunodeficiency virus (HIV)? You may be given
Hepatyrix, but the vaccine may not protect you as
well as it protects people with normal immune
systems.
Pregnancy and breast-feeding
Tell
your doctor or nurse if you are pregnant, think you
may be pregnant, or are breast-feeding a child.
Hepatyrix can still be given if you are at high risk
of infection with hepatitis A or typhoid. Your
doctor or nurse will advise if you should be
vaccinated now or wait.
Driving and using machines
Some of
the possible side effects that can happen after
having Hepatyrix could interfere with driving or
operating machinery. See section 4 below.
Taking other medicines or having other vaccines
As
Hepatyrix does not contain any live bacteria or
viruses, it can generally be given at the same time
as other vaccines, but at a different injection
site. Hepatyrix may be given at the same time as
yellow fever vaccine, but at a different injection
site.
If you
need an injection of immunoglobulins (antibodies
obtained from blood donors), this can be given at
the same time or within a few weeks of having
Hepatyrix. You may not produce as much antibody to
the hepatitis A virus as you would otherwise but it
is likely that you will still be protected against
infection.
Other
medicines should be taken as usual after the
vaccination.
3. HOW
HEPATYRIX IS GIVEN
The dose of
Hepatyrix for people who are at least 15 years of age is
one millilitre.
The doctor
or nurse will give Hepatyrix as an injection into
muscle, usually in your upper arm.
Your doctor
or nurse will take care that Hepatyrix is not given into
a blood vessel.
The vaccine
would not usually be given deep into the skin because
protection may be less.
Your doctor
or nurse will give you instructions on when to receive
Hepatyrix vaccine.
For
travellers, the vaccine is usually given at least two
weeks before departure to give the immune system time to
respond and start to protect you against infection.
If you have
not previously been vaccinated against hepatitis A, one
injection of Hepatyrix will protect you from hepatitis A
infection for at least one year. You will need a booster
injection of an inactivated hepatitis A vaccine 6 to 12
months later to give you protection against hepatitis A
for up to 10 years.
Hepatyrix
can also be given to you to boost your immunity to
hepatitis A if you have already received a first dose of
inactivated hepatitis A vaccine 6 to 12 months ago,
provided that you also require protection against
typhoid fever.
One
injection of Hepatyrix should protect you from typhoid
fever for about three years. If, after 3 years, you
carry on being at risk from catching typhoid fever, you
should arrange to receive an injection of purified Vi
polysaccharide typhoid vaccine.
4.
POSSIBLE SIDE EFFECTS
Any vaccine
can have some side effects.
Serious
allergic reactions are a very rare possibility after
receiving a vaccine. These happen in less than one in
ten thousand people vaccinated. These reactions may
include difficulty in breathing, blue discolouration of
the tongue or lips, low blood pressure (causing
dizziness) and collapse. When these signs or symptoms
occur they usually develop very quickly after the
injection is given and while the person affected is
still in the clinic or doctor's surgery. If any of these
symptoms occur after leaving the place where your
injection was given, you must consult a doctor
IMMEDIATELY.
Side effects
that occurred during clinical trials with Hepatyrix were
as follows:
Very common (more than 1 in
ten people vaccinated):
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Discomfort at the injection site or pain or redness
Common (less than 1 in 10 but
more than 1 in 100 people vaccinated):
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Swelling at the injection site
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Feeling generally unwell
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Headache
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General aches
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Fever
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Feeling sick
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Itching
Very rare (less than 1 in
100,000 people vaccinated)
Also, being
sick and loss of appetite were reported during clinical
trials with the individual hepatitis A vaccine so they
may happen after having Hepatyrix.
Additional
side effects that have been reported very rarely (less
than one in 10,000 people vaccinated) in the days or
weeks after vaccination with Hepatyrix or with the
individual hepatitis A vaccine, include:
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Other allergic reactions. These may be local or
widespread rashes that may be itchy or blistering,
or swelling of the eyes and face.
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Joint or muscle pains
- Fits
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Problems with the normal working of the nerves that
can cause symptoms such as odd sensations including
pins and needles, loss of feeling or numbness,
problems moving your arms or legs or difficulty with
walking and moving about.
If these
events continue or become severe, tell your doctor.
If you
notice any side effects not mentioned in this leaflet,
please inform your doctor or pharmacist.
5.
STORING HEPATYRIX
Your doctor
or nurse will usually make sure that Hepatyrix is stored
correctly at 2°C - 8°C (in a refrigerator) in the
original package so that it is protected from light.
They will
also make sure that the vaccine is not used after the
expiry date on the label.
The vaccine
must not be frozen since this destroys the vaccine.
Hepatyrix
must always be kept out of the reach and sight of
children.