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This medicinal product is subject to additional monitoring. This will allow quick identification of new safety information.
The text only version may be available in large print, Braille or audio CD. For further information call emc accessibility on 0800 198 5000. The product code(s) for this leaflet is: PL 29831/0506.
Sodium Valproate 100mg/ml Solution for Injection or Infusion
Sodium Valproate 100mg/ml Solution for Injection or 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.
Sodium Valproate can seriously harm an unborn baby when taken during pregnancy. If you are a female able to have a baby, you must use effective method of birth control (contraception) at all times without interruptions during your entire treatment with Sodium Valproate Injection. Your doctor will discuss this with you but you must also follow the advice in section 2 of this leaflet.
Schedule an urgent appointment with your doctor or nurse if you want to become pregnant or if you think you are pregnant.
Do not stop taking Sodium Valproate Injection unless your specialist tells you to as your condition may become worse.
If you are a parent or caregiver of a female child treated with Sodium Valproate Injection, you must also read section 2 of this leaflet carefully and contact your child’s doctor or nurse once they experience their first period
1. What Sodium Valproate Injection is and what it is used for
2. What you need to know before you are given Sodium Valproate Injection
3. How Sodium Valproate Injection is given
4. Possible side effects
5. How to store Sodium Valproate Injection
6. Contents of the pack and other information
The name of your medicine is Sodium Valproate 100mg/ml Solution for Injection or Infusion (called Sodium Valproate Injection in this leaflet).
Sodium Valproate Injection 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.
Sodium Valproate Injection 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.
If you are a woman able to have a baby, you must not take Sodium Valproate Injection unless you use an effective method of birth control (contraception) at all times during your entire treatment with Sodium Valproate Injection. Do not stop taking Sodium Valproate Injection or your contraception, until you have discussed this with your specialist. Your specialist will advise you further (see below under “Pregnancy, breast-feeding and fertility – Important advice for women”).
Do not have this medicine if any of the above apply to you. If you are not sure, talk to your doctor, pharmacist or nurse before having Sodium Valproate Injection.
If you are not sure if any of the above apply to you, talk to your doctor, pharmacist or nurse before having Sodium Valproate Injection
Having Sodium Valproate Injection may make you put on weight. Talk to your doctor or nurse about how this will affect you.
Your doctor may request blood tests and liver function tests before and during your treatment with this medicine. Sodium Valproate Injection 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.
Tell your doctor, nurse 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 Injection can affect the way some other medicines work. Also some medicines can affect the way Sodium Valproate Injection works.
In particular, check with your doctor if you are taking any of the following:
Alcohol intake is not recommended during treatment.
Important advice for women
The risks of valproate when taken during pregnancy :
Please choose the situations which apply to you and read the descriptions below:
I AM STARTING TREATMENT WITH SODIUM VALPROATE INJECTION
If this is the first time you have been prescribed valproate your specialist will have explained the risks to an unborn child if you become pregnant. Once you are able to have a baby, you must use an effective method of birth control (contraception) at all times during your entire treatment with Sodium Valproate Injection. Talk to your doctor or family planning clinic if you need advice on birth control (contraception).
Key messages:
I AM TAKING SODIUM VALPROATE INJECTION AND NOT PLANNING TO HAVE A BABY
If you are continuing treatment with valproate but you are not planning to have a baby, you must use an effective method of birth control (contraception) at all times during your entire treatment with Sodium Valproate Injection. Talk to your doctor or family planning clinic if you need advice on birth control (contraception).
Key messages:
I AM TAKING SODIUM VALPROATE INJECTION AND PLANNING TO HAVE A BABY
If you are planning to have a baby, first schedule an appointment with your doctor
Do not stop taking Sodium Valproate Injection or your birth control (contraception), until you have discussed this with your specialist. Your specialist will advise you further.
Babies born to mothers who have been on valproate are at serious risk of birth defects and problems with development (behaviour and learning disorders) which can be seriously debilitating. Your doctor will refer you to a specialist experienced in the management of epilepsy, so that alternative treatment options are evaluated early on. Your specialist 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 specialist may decide to change the dose of valproate, switch you to another medicine, or stop treatment with Sodium Valproate Injection a long time before you become pregnant – this is to make sure your illness is stable.
Ask your doctor or nurse about taking folic acid when planning to have 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:
I AM PREGNANT AND I AM USING SODIUM VALPROATE INJECTION
Do not stop taking Sodium Valproate Injection, unless your specialist tells you to as your condition may become worse.
Schedule an urgent appointment with your doctor if you are pregnant or think you might be pregnant. Your doctor will advise you further.
Babies born to mothers who have been on valproate are at serious risk of birth defects and problems with development (behaviour and learning disorders) which can be seriously debilitating and/or permanent.
You will be referred to a specialist experienced in the management of epilepsy, so that alternative treatment options can be evaluated.
In the exceptional circumstances when Sodium Valproate Injection is the only available treatment option during pregnancy, you will be monitored very closely both for the management of your underlying condition and to check how your unborn child is developing. You and your partner should receive counselling and support regarding the valproate-exposed pregnancy.
Ask your doctor or nurse 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:
Make sure you read the Patient Guide that you will receive from your doctor, pharmacist or nurse. Your specialist will discuss the Annual Risk Acknowledgement Form with you and will ask you to sign it and keep it. You will also receive a Patient Card from your doctor, pharmacist or nurse to remind you of valproate risks in pregnancy.
Newborn babies of mothers who took valproate during pregnancy may have:
Breast-feeding
Very little Sodium Valproate Injection gets into breast milk. However, talk to your doctor about whether you should breast-feed your baby. Ask your doctor, pharmacist or nurse for advice before taking or having any medicine.
Important advice for male patients
Potential risks related to taking valproate in the 3 months before conception of a child
A study suggests a possible risk of mental and movement related developmental disorders (problems with early childhood development) in children born to fathers treated with valproate in the 3 months before conception. In this study, around 5 children in 100 had such disorders when born to fathers treated with valproate as compared to around 3 children in 100 when born to fathers treated with lamotrigine or levetiracetam (other medicines that can be used to treat your disease). The risk for children born to fathers who stopped valproate treatment 3 months (the time needed to form new sperm) or longer before conception is not known. The study has limitations and therefore it is not clear if the increased risk for movement and mental developmental disorders suggested by this study is caused by valproate. The study was not large enough to show which particular type of movement and mental developmental disorder children may be at risk of developing.
As a precautionary measure, your GP or specialist will discuss with you:
Do not donate sperm when taking valproate or for 3 months after stopping valproate.
Talk to your GP or specialist if you are thinking about having a baby.
If your female partner becomes pregnant while you used valproate in the 3 months period before conception and you have questions, contact your GP or specialist. Do not stop your treatment without talking to your GP or specialist. If you stop your treatment, your symptoms may become worse.
You should get regular appointments with your GP. During this visit your GP will discuss with you the precautions associated with valproate use. They will refer you to a specialist to discuss the possibility of other treatments that can be used to treat your disease, depending on your individual situation.
You may feel sleepy when taking Sodium Valproate Injection. 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.
Sodium Valproate Injection 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 Injection or have any questions about how much Sodium Valproate Injection is being given to you, speak to your doctor or nurse.
Your doctor will stop giving you Sodium Valproate Injection and change you to oral therapy (by mouth) as soon as possible.
Sodium Valproate Injection treatment must be started and supervised by a doctor specialised in the treatment of epilepsy.
Adults (including the elderly)
Children
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.
The following effects may happen: feeling sick or being sick, headache, blurred vision due to pupil of the eye becoming smaller, dizziness, poor reflexes, confusion, memory loss and tiredness. You may also have weak or ‘floppy muscles’, fits (seizures), loss of consciousness, behavioural changes and breathing difficulties such as fast breathing, shortness of breath or chest pain.
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.
It is important for you to keep having Sodium Valproate Injection until your specialist decides to stop them. If you stop having Sodium Valproate Injection before your specialist decides to stop it, your condition may get worse.
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. If you or your child go into hospital or visit another doctor or a dentist, tell them you have been given Sodium Valproate Injection.
If you have any further questions about receiving this product, ask your doctor, nurse or pharmacist.
Like all medicines Sodium Valproate Injection can cause side effects, although not everybody gets them. Side effects are more likely to happen at the start of treatment.
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 anti-epileptic medication, have a history of osteoporosis, or take steroids.
Sodium Valproate Injection can change levels of liver enzymes, blood clotting factors, salts or sugars shown up on blood and urine tests.
Some side effects of valproate occur more frequently in children or are more severe compared to adults. These include liver damage, inflammation of the pancreas (pancreatitis), bedwetting (enuresis), renal dysfunction (Fanconi Syndrome), overgrowth of gum tissue, aggression, agitation, disturbance in attention, abnormal behaviour, hyperactivity and learning disorder.
If you get any side effects, talk to your doctor, nurse or pharmacist. This includes any possible side effects not listed in this leaflet. You can also report side effects directly via the Yellow Card Scheme, Website: www.mhra.gov.uk/yellowcard 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.
This medicine will be kept by your doctor or nurse out of the sight and reach of children.
Do not have this medicine after the expiry date which is stated on the carton. The expiry date refers to the last day of that month.
Do not freeze. Only clear solutions free of particles should be used. The contents of the ampoule are for single use only.
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 to protect the environment.
The active ingredient is sodium valproate 100mg per ml.
The other ingredients are Disodium hydrogen phosphate dodecahydrate, sodium dihydrogen phosphate dihydrate, phosphoric acid, sodium hydroxide and water for injections.
Sodium Valproate Injection is a clear colourless solution. It is available in glass ampoules containing either 4ml (400mg sodium valproate) or 10ml (1000mg sodium valproate) of the solution for injection. Each pack contains 1, 5 or 10 ampoules. Not all pack sizes may be marketed.
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Product Name Reference number
Sodium Valproate 100mg/ml Solution for Injection or Infusion 29831/0506
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This leaflet was last revised in 11/2024
105857/15