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SODIUM VALPROATE 400 MG POWDER AND SOLVENT FOR SOLUTION FOR INJECTION/INFUSION

Active substance(s): SODIUM VALPROATE

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Package leaflet: Information for the user
Sodium Valproate 400mg Powder and Solvent for
solution for injection/infusion
Sodium Valproate
This medicine is subject to additional monitoring.
This will allow quick identification of new safety
information. You can help by reporting any side effects
you may get. See the end of section 4 for how to report
side effects.
WARNING
Valproate can cause birth defects and problems with early
development of the child if it is taken during pregnancy. If
you are a female of childbearing age you should use an
effective method of contraception throughout your
treatment.
Your doctor will discuss this with you but you should also
follow the advice in section 2 of this leaflet. Tell your
doctor at once if you become pregnant or think you might
be pregnant.
Read all of this leaflet carefully before you start taking
this medicine because it contains important
information for you.
- Keep this leaflet. You may need to read it again.
- If you have any further questions, 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
symptoms 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.
The name of your medicine is Sodium Valproate
400mg Powder and Solvent for solution for
injection/infusion.
In the rest of this leaflet this medicine will be called
Sodium Valproate.
What is in this leaflet
1.
What Sodium Valproate is and what it is used for
2.
What you need to know before you are given
Sodium Valproate
3.
How Sodium Valproate is given
4.
Possible side effects
5.
How to store Sodium Valproate
6.
Contents of the pack and other information
1.

What Sodium Valproate is and what it is used
for

What Sodium Valproate contains
Sodium Valproate contains a medicine called sodium
valproate. This belongs to a group of medicines called
anti-convulsants or anti-epileptic agents. It works by
helping to calm the brain down.
What Sodium Valproate is used for
Sodium Valproate is used to treat epilepsy (fits) in adults
and children. The injection is given when it is not possible
to have your medicine by mouth.
Sodium Valproate treatment must be started and
supervised by a doctor specialised in the treatment of
epilepsy or bipolar disorders.
2.

What you need to know before you are given
Sodium Valproate

Do not have Sodium Valproate and tell your doctor or
nurse if:
You are allergic (hypersensitive) to sodium valproate
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.
You have liver problems or you or your family have a
history of liver problems.
If you have a genetic problem caused by a
mitochondrial disorder (e.g. Alpers-Huttenlocher
syndrome).
Do not have this medicine if any of the above apply to you.
If you are not sure, talk to your doctor or pharmacist
before having Sodium Valproate.
Warnings and precautions
A small number of people being treated with anti-epileptics
such as sodium valproate have had thoughts of harming
or killing themselves. If at any time you have these
thoughts, immediately contact your doctor.
Talk to your doctor or pharmacist before taking
Sodium Valproate:
You have diabetes. This medicine may affect the
results of urine tests.
You have kidney problems. Your doctor may give
you a lower dose.
You have fits (epilepsy), brain disease or a
metabolic condition affecting your brain.
You have a ‘urea cycle disorder’ where too much
ammonia builds up in the body.
You have an illness called “systemic lupus
erythematosus (SLE)” – a disease of the immune
system which affects skin, bones, joints and
internal organs.
You know that there is a genetic problem caused
by a mitochondrial disorder in your family.
If you are not sure if any of the above apply to you, talk to
your doctor or pharmacist before having Sodium
Valproate.
Weight gain
Having Sodium Valproate may make you put on weight.
Talk to your doctor about how this will affect you.
Blood tests
Your doctor may wish to do blood tests before you start
having Sodium Valproate and during your treatment.
Other medicines and Sodium Valproate
Tell your doctor or pharmacist if you are taking, have
recently taken or might take any other medicines.
This includes medicines you buy without a prescription,
including herbal medicines. This is because Sodium
Valproate can affect the way some other medicines work.
Also some medicines can affect the way Sodium
Valproate works.
The following medicines can increase the chance of
you getting side effects, when taken with Sodium
Valproate:
Some medicines used for pain and inflammation
(salicylates) such as aspirin.
Some other medicines used to treat fits (epilepsy) –
see section 3, “Patients taking other medicines for
‘fits’”. This includes medicines such as phenobarbital,
primidone, phenytoin, carbamazepine, topiramate,
lamotrigine and felbamate.
Sodium Valproate may increase the effect of the
following medicines:
Medicines used for thinning the blood (such as
warfarin).
Zidovudine used to treat HIV infection.
Temozolomide used to treat cancer.
Medicines for depression.
Monoamine oxidase inhibitors (MAOI) such as
moclobemide, selegiline, linezolid.
Medicines used to calm emotional and mental
conditions such as diazepam and olanzapine.
The following medicines can affect the way Sodium
Valproate works:
Some medicines used for the prevention and
treatment of malaria such as mefloquine and
chloroquine.
Cimetidine used for stomach ulcers.
Carbapenem agents (antibiotics used to treat bacterial
infections) such as imipenem, meropenem, rifampicin
and erythromycin. The combination of Sodium
Valproate and carbapenems should be avoided
because it may decrease the effect of your medicine.

Colestyramine used to lower blood fat (cholesterol)
levels.
Sodium Valproate with food and drink
Alcohol intake is not recommended during treatment.
Pregnancy, breast-feeding and fertility
Important advice for women
Valproate can be harmful to unborn children when
taken by a woman during pregnancy.
Valproate carries a risk if taken during pregnancy. The
higher the dose, the higher the risks but all doses
carry a risk.
It can cause serious birth defects and can affect the
way in which the child develops as it grows. Birth
defects which have been reported include spina bifida
(where the bones of the spine are not properly
developed); facial and skull malformations; heart,
kidney, urinary tract and sexual organ malformations;
limb defects.
If you take valproate during pregnancy you have a
higher risk than other women of having a child with
birth defects that require medical treatment. Because
valproate has been used for many years we know that
in women who take valproate around 10 babies in
every 100 will have birth defects. This compares to 2-3
babies in every 100 born to women who don’t have
epilepsy.
It is estimated that up to 30-40% of preschool children
whose mothers took valproate during pregnancy may
have problems with early childhood development.
Children affected can be slow to walk and talk,
intellectually less able than other children, and have
difficulty with language and memory.
Autistic spectrum disorders are more often diagnosed
in children exposed to valproate and there is some
evidence children may be more likely to develop
symptoms of Attention Deficit Hyperactivity Disorder
(ADHD).
If you are a woman capable of becoming pregnant
your doctor should only prescribe valproate for you if
nothing else works for you.
Before prescribing this medicine to you, your doctor
will have explained what might happen to your baby if
you become pregnant whilst taking valproate. If you
decide later you want to have a child you should not
stop taking your medicine until you have discussed
this with your doctor and agreed a plan for switching
you onto another product if this is possible.
Ask your doctor about taking folic acid when trying for
a baby. Folic acid can lower the general risk of spina
bifida and early miscarriage that exists with all
pregnancies. However, it is unlikely that it will reduce
the risk of birth defects associated with valproate use.
FIRST PRESCRIPTION
If this is the first time you have been prescribed valproate
your doctor will have explained the risks to an unborn child
if you become pregnant. Once you are of childbearing
age, you will need to make sure you use an effective
method of contraception throughout your treatment. Talk
to your doctor or family planning clinic if you need advice
on contraception.
Key messages:
Make sure you are using an effective method of
contraception.
Tell your doctor at once if you are pregnant or think
you might be pregnant.
CONTINUING TREATMENT AND NOT TRYING FOR A
BABY
If you are continuing treatment with valproate but you don’t
plan to have a baby make sure you are using an effective
method of contraception. Talk to your doctor or family
planning clinic if you need advice on contraception.
Key messages:
Make sure you are using an effective method of
contraception.
Tell your doctor at once if you are pregnant or think
you might be pregnant.
CONTINUING TREATMENT AND CONSIDERING
TRYING FOR A BABY
If you are continuing treatment with valproate and you are
now thinking of trying for a baby you must not stop taking
either your valproate or your contraceptive medicine until
you have discussed this with your prescriber. You should
talk to your doctor well before you become pregnant so
that you can put several actions in place so that your
pregnancy goes as smoothly as possible and any risks to
you and your unborn child are reduced as much as
possible.
Your doctor may decide to change the dose of valproate
or switch you to another medicine before you start trying
for a baby.
If you do become pregnant you will be monitored very
closely both for the management of your underlying
condition and to check how your unborn child is
developing.
Ask your doctor about taking folic acid when trying for a
baby. Folic acid can lower the general risk of spina bifida
and early miscarriage that exists with all pregnancies.
However, it is unlikely that it will reduce the risk of birth
defects associated with valproate use.
Key messages:
Do not stop using your contraception before you have
talked to your doctor and worked together on a plan to
ensure your epilepsy is controlled and the risks to your
baby are reduced.
Tell your doctor at once when you know or think you
might be pregnant.
UNPLANNED PREGNANCY WHILST CONTINUING
TREATMENT
Babies born to mothers who have been on valproate are at
serious risk of birth defects and problems with
development which can be seriously debilitating. If you are
taking valproate and you think you are pregnant or might
be pregnant contact your doctor at once. Do not stop
taking your medicine until your doctor tells you to.
Ask your doctor about taking folic acid. Folic acid can
lower the general risk of spina bifida and early miscarriage
that exists with all pregnancies. However, it is unlikely that
it will reduce the risk of birth defects associated with
valproate use.
Key messages:
Tell your doctor at once if you know you are pregnant
or think you might be pregnant.
Do not stop taking valproate unless your doctor tells
you to.
Make sure you read the patient booklet and sign the
Acknowledgement of Risk form which should be given
to you and discussed with you by your doctor or
pharmacist.
Breastfeeding
Very little sodium valproate gets into the breast milk.
However, talk to your doctor about whether you should
breast-feed your baby. Ask your doctor or pharmacist for
advice before taking or having any medicine.
Driving and using machines
You may feel sleepy, when taking Sodium Valproate. If
this happens to you, do not drive or use any tools or
machines. Taking other medicines used to treat fits or
calm emotional and mental health problems may increase
sleepiness.
Important information about some of the ingredients
of Sodium Valproate
This medicinal product contains approximately 55mg
sodium per vial. To be taken into consideration by patients
on a controlled sodium diet.
3.

How Sodium Valproate is given

Sodium Valproate is always given to you by a doctor or
nurse. This is because it needs to be given as a slow
injection or infusion into the vein.

If you are not sure why you are being given Sodium
Valproate or have any questions about how much Sodium
Valproate is being given to you, speak to your doctor or
nurse.
Your doctor will stop giving you Sodium Valproate
Injection and change you to sodium valproate tablets,
granules, syrup or liquid as soon as possible.
Sodium Valproate treatment must be started and
supervised by a doctor specialised in the treatment of
epilepsy.

Feeling shaky (tremor), sleepy or unsteady when
walking or jerky muscle movements.
Feeling tired or confused with loss of consciousness
sometimes accompanied by hallucinations or fits.
Blisters with the skin flaking away.
Rapid, uncontrollable movement of the eyes.
Tell your doctor or pharmacist if any of the following
side effects get serious or lasts longer than a few
days, or if you notice any side effects not listed in this
leaflet:

How much will be given to you
Your doctor will decide how much to give you
depending on your illness. The amount of Sodium
Valproate given to you or your child will depend on you
or your child’s age or body weight.
If you have been taking sodium valproate by mouth
your doctor may decide to give you the same amount
of Sodium Valproate Injection by continuous or
repeated infusion.
If you have not had Sodium Valproate Injection before, the
doctor will use the following doses:

Feeling sick, stomach ache or diarrhoea, especially when
starting treatment.
Fainting.
Hearing loss.
Skin problems such as rashes. These happen rarely,
but more often in people also taking lamotrigine.
Acne.
Hair loss which is usually temporary. When it grows
back it may be more curly than before
Hair, including body or facial hair grows more than
normal in women.
Skin rash caused by narrow or blocked blood vessels
(vasculitis).
Changes in women's periods and increased hair
growth in women.
Breast enlargement in men.
Swelling of the feet and legs (oedema).
Weight gain - as your appetite may be increased.
Kidney problems, bedwetting or increased need to
pass urine.
Headache.
Aggression, agitation, disturbance in attention.,
abnormal behaviour, restlessness/hyperactivity and
learning disorder
Tingling or numbness of the hands or feet

Adults (including the elderly)
The starting dose is usually between 400mg and
800mg (up to 10mg per kilogram of body weight).
This is given as a slow intravenous injection over 3-5
minutes.
This is followed by a continuous or repeated infusion, up
to a maximum of 2500mg each day.
Children
The usual dose is between 20mg and 30mg for each
kilogram of body weight each day.
This may be increased to 40mg for each kilogram of
body weight each day depending on your child’s
illness.
Patients with kidney problems
Your doctor may decide to adjust your or your child’s
dose.
Patients taking other medicines for ‘fits’ (epilepsy)
You or your child may be taking other medicines for
epilepsy at the same time as Sodium Valproate. If so,
your doctor should gradually initiate treatment
depending on you or your child’s condition.
Your doctor may increase the dose of Sodium
Valproate by 5 to 10mg for each kilogram of body
weight each day depending on which other medicines
you are taking.
If you are given more Sodium Valproate than you
should
It is unlikely that your doctor or nurse will give you too
much medicine.
Your doctor will be checking your progress and checking
the medicine that you are given. Always ask if you are not
sure why you are getting a dose of medicine.
Using too much Sodium Valproate can lead to the
following symptoms: feeling sick or being sick, pupils of
the eye become smaller, dizziness, loss of consciousness,
weak muscles and poor reflexes, breathing problems,
headaches, fits (seizures), confusion, memory loss and
unusual or inappropriate behaviour.
If you forget to be given Sodium Valproate
Your doctor or nurse will have instructions on when to give
you this medicine. It is unlikely that you will not be given
the medicine as it has been prescribed. However, if you
think you may have missed a dose,
then talk to your doctor or nurse.
If you stop using Sodium Valproate
It is important for you to keep having Sodium Valproate
until your doctor decides to stop them. If you stop, your fits
may come back.
Tests
Make sure you or your child keep your regular
appointments for a check up.
They are very important as your or your child’s dose may
need to be changed.
Sodium Valproate can change the levels of liver enzymes
shown up in blood tests. This can mean that your or your
child’s liver is not working properly.
If you or your child go into hospital or visit another doctor
or a dentist, tell them you are taking Sodium Valproate.
If you have any further questions on the use of this
medicine, ask your doctor or pharmacist.
4.

Possible side effects

Like all medicines, this medicine can cause side effects,
although not everybody gets them.
Tell your doctor straight away if you notice any of the
following serious side effects - you may need urgent
medical treatment:
You have an allergic reaction. The signs may include:
a rash, joint pain, fever (systemic lupus
erythematosus), swallowing or breathing problems,
swelling of your lips, face, throat or tongue. Hands,
feet or genitals may also be affected. More severe
allergic reactions can lead to lymph node enlargement
and possible impairment of other organs.
Liver problems and problems of the pancreas may
show as a sudden illness which may happen in the
first six months of treatment. This happens in a very
small number of people taking Sodium Valproate. It
includes feeling and being sick many times, being very
tired, sleepy and weak, stomach pain including very
bad upper stomach pain, jaundice (yellowing of the
skin or whites of the eyes), loss of appetite, swelling
(especially of the legs and feet but may include other
parts of the body), worsening of your fits or a general
feeling of being unwell.
Your doctor may tell you to stop taking Sodium
Valproate immediately if you have these symptoms.
You have a skin rash or skin lesions with a pink/red
ring and a pale centre which may be itchy, scaly or
filled with fluid. The rash may appear especially on the
palms or soles of your feet. These could be signs of a
serious allergy to the medicine called ‘erythema
multiforme’.
Blistering or bleeding of the skin around the lips, eyes,
mouth, nose and genitals. Also flu-like symptoms and
fever. This may be something called ‘StevensJohnson syndrome’.
Severe blistering rash where layers of the skin may
peel off to leave large areas of raw exposed skin over
the body. Also a feeling of being generally unwell,
fever, chills and aching muscles. This may be
something called ‘Toxic epidermal necrolysis’.
Bruising more easily and getting more infections than
usual. This could be a blood problem called
‘thrombocytopenia’. It can also be due to a fall in the
number of white blood cells, bone marrow depression
or another condition that affects red blood cells, white
blood cells and platelets (pancytopenia) or how the
blood clots.
Blood clotting problems (bleeding for longer than
normal), bruising or bleeding for no reason.
Changes in mood, loss of memory, lack of
concentration and deep loss of consciousness (coma).
Underactive thyroid gland, which may cause tiredness
or weight gain (hypothyroidism).
Breathing difficulty and pain due to inflammation of the
lungs (pleural effusion).
Tell your doctor as soon as possible if you have any of
the following side effects:
Changes in behaviour including being very alert, and
sometimes also aggressive, hyper-active and unusual
or inappropriate behaviour. This is more likely if other
medicine to treat fits such as phenobarbital and
topiramate are taken at the same time or if the
Sodium Valproate starting dose is high or has been
suddenly increased.
Changes in the amount of ammonia in the blood.
Symptoms of this condition are being sick, problems
with balance and co-ordination, feeling lethargic or
less alert.

Bone Disorders
There have been reports of bone disorders including
osteopenia and osteoporosis (thinning of the bone) and
fractures. Check with your doctor or pharmacist if you are
on long-term antiepileptic medication, have a history of
osteoporosis, or take steroids.
Blood tests
Sodium Valproate can change levels of liver enzymes,
salts or sugars shown up on blood and urine tests.
Male Fertility
Sodium Valproate can be a contributing factor in male
infertility.
Talk to your doctor or pharmacist if any of the side effects
get serious or lasts longer than a few days, or if you notice
any side effects not listed in this leaflet.
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
Yellow Card Scheme, Website:
www.mhra.gov.uk/yellowcard. By reporting side effects
you can help provide more information on the safety of
this medicine.
5.

How to store Sodium Valproate

Keep this medicine out of the sight and reach of children.
Do not use this medicine after the expiry date which is
stated on the label and carton after EXP.The expiry date
refers to the last day of that month.
Do not use this medicine if you notice any particles.
This medicinal product does not require any special
storage conditions.
Once diluted, Sodium Valproate should be stored in a
refrigerator between 2 - 8°C and used within 24 hours. Any
solution remaining after 24 hours should be discarded.
Do not throw away any medicines via wastewater or
household waste. Ask your pharmacist how to throw away
medicines you no longer use. These measures will help
protect the environment.
6.

Contents of the pack and other information

What Sodium Valproate contains
The active substance is sodium valproate. Each
vial contains 400mg of the active substance,
sodium valproate.
What Sodium Valproate looks like and contents of the
pack
Sodium Valproate is a freeze-dried powder in a colourless
glass vial with an aluminium cap. Sodium Valproate is
available in packs of 1 glass vial with 1 glass ampoule
solvent, 4 glass vials with 4 glass ampoules solvent and 5
glass vials with 5 glass ampoules solvent.
Not all pack sizes may be marketed.
Marketing Authorisation Holder and Manufacturer
Marketing Authorisation Holder: Noridem Enterprises
Ltd, Evagorou and Makariou Mitsi Building 3, Office 115,
1065 Nicosia, Cyprus.
Manufacturer: DEMO S.A., 21st km National Road
Athens-Lamia, 14568 Krioneri, Athens, Greece.
This medicinal product is authorised in the Member
States of the EEA under the following names:
United Kingdom: Sodium Valproate 400 mg Powder and
Solvent for solution for injection/infusion
This leaflet was last revised in 09/2015.

If this leaflet is difficult to see or read,
please contact the following address
for help:
Athlone Laboratories, Ballymurray, Co.
Roscommon, Ireland,
Tel +353-9066-61109,
Email medical@athlonelaboratories.com.

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Source: Medicines and Healthcare Products Regulatory Agency

Disclaimer: Every effort has been made to ensure that the information provided here is accurate, up-to-date and complete, but no guarantee is made to that effect. Drug information contained herein may be time sensitive. This information has been compiled for use by healthcare practitioners and consumers in the United States. The absence of a warning for a given drug or combination thereof in no way should be construed to indicate that the drug or combination is safe, effective or appropriate for any given patient. If you have questions about the substances you are taking, check with your doctor, nurse or pharmacist.

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