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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 14040/0028.
Episenta solution for injection (sodium valproate)
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▼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.
Episenta solution for injection
(Sodium Valproate 100 mg/ml)
Episenta Injection, sodium valproate 100 mg/ml, can seriously harm an unborn child when taken during pregnancy. If you are a female able to have a baby you must use effective method of birth control (contraception) without interruptions during your entire treatment with Episenta 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 if you want to become pregnant or if you think you are pregnant.
Do not stop taking Episenta 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 Episenta Injection, you must also read section 2 of this leaflet carefully and contact your child’s doctor once they experience their first period.
1. What Episenta Injection is and what it is used for
2. What you need to know before you use Episenta Injection
3. How to use Episenta Injection
4. Possible side effects
5. How to store Episenta Injection
6. Contents of the pack and other information
Episenta Injection contains sodium valproate, which belongs to a group of medicines called antiepileptics. These are used to control epileptic seizures.
Episenta solution for injection is used to treat various types of epileptic seizures (fits) when it is not possible to take sodium valproate tablets.
If you are a woman able to have a baby, you must not take Episenta Injection unless you use effective method of birth control (contraception) at all times during your entire treatment with Episenta Injection. Do not stop taking Episenta 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 take this medicine if any of the above apply to you. If you are not sure, talk to your doctor, nurse or pharmacist before having Episenta Injection.
The risk of liver damage is increased if Episenta is taken by children under 3 years of age, in people taking other antiepileptic medicine at the same time or having other neurological or metabolic disease and severe forms of epilepsy.
A small number of people being treated with antiepileptics such as sodium valproate have had thoughts of harming or killing themselves. If at any time you have these thoughts, immediately contact your doctor.
As with other antiepileptic drugs, convulsions may become worse or happen more frequently whilst taking this medicine. If this happens contact your doctor immediately.
If you or your child taking Episenta develops problems with balance and co-ordination, feeling lethargic or less alert, vomiting, tell your doctor immediately. This may be due to increased amount of ammonia in the blood.
Talk to your doctor, nurse or pharmacist before taking Episenta Injection if:
If you are not sure if any of the above apply to you, talk to your doctor or pharmacist before having Episenta Injection.
Having Episenta Injection may make you put on weight. Talk to your doctor about how this will affect you.
Your doctor may do blood tests and liver function tests before and during your treatment with this medicine. Episenta Injection can change the levels of liver enzymes shown 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 Episenta Injection can affect the way some other medicines work. Also some medicines can affect the way Episenta Injection works.
The following medicines can increase the chance of you getting side effects, when taken with Episenta Injection:
Episenta Injection may increase the effect of the following medicines:
The following medicines can affect the way Episenta Injection works:
It may still be possible for you to be given Episenta Injection; your doctor will advise you on what is suitable for you.
Alcohol intake is not recommended during treatment.
If you are pregnant or breast-feeding, think you may be pregnant or are planning to have a baby, ask your doctor for advice before taking this medicine.
Important advice for women
The risks of valproate when taken during pregnancy
Please choose and read the situations which apply to you from the situations described below:
I AM STARTING TREATMENT WITH EPISENTA INJECTION
If this is the first time you have been prescribed Episenta Injection 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 Episenta Injection. Talk to your doctor or family planning clinic if you need advice on birth control (contraception).
Key messages:
I AM HAVING EPISENTA INJECTION AND NOT PLANNING TO HAVE A BABY
If you are continuing treatment with Episenta Injection 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 Episenta Injection. Talk to your doctor or family planning clinic if you need advice on birth control (contraception).
Key messages:
I AM HAVING EPISENTA 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 Episenta 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 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 Episenta Injection or switch you to another medicine, or stop treatment with Episenta 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 EPISENTA INJECTION
Do not stop taking Episenta 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 which can be seriously debilitating.
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 Episenta 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 could 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, nurse or pharmacist. Your specialist will discuss the Annual Risk Acknowledgement Form and will ask you to sign it and keep it. You will also receive a Patient Card from your doctor, nurse or pharmacist to remind you of valproate risks in pregnancy.
Newborn babies of mothers who took valproate during pregnancy may have:
Breast-feeding
A small amount of sodium valproate, the active substance of Episenta Injection, gets into the breast milk. Talk to your doctor about whether you should breast-feed your baby. Ask your doctor, nurse or pharmacist for advice before taking 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 experience drowsiness when you are first given Episenta Injection, or if you are also taking other medicines, such as other antiepileptic drugs or benzodiazepines. If affected, you should not drive or operate machinery.
This medicine contains 41.6 mg sodium (cooking/table salt) in each 3 ml ampoule. This is equivalent to 2 % of the recommended maximum daily dietary intake of sodium for an adult.
This medicine contains 138.8 mg sodium (cooking/table salt) in each 10 ml ampoule. This is equivalent to 7 % of the recommended maximum daily dietary intake of sodium for an adult.
Episenta Injection treatment must be started and supervised by a doctor specialised in the treatment of epilepsy.
Dosage
Your doctor will decide on the amount of Episenta Injection you will be given. This will depend on your age and weight and will be adjusted to achieve adequate control of your seizures. If you have been taking sodium valproate by mouth, the dose given to you will be the same by injection. If you have been receiving other medicines for epilepsy the dose of Episenta Injection will be increased gradually over about 2 weeks. The total daily dose will normally be given by three or four slow injections, lasting 3-5 minutes, into your veins during the day, or by a continuous infusion (drip).
Adults, including the elderly
The recommended starting dose is 400–800 mg (4–8 ml) daily increasing by 150–300 mg (1.5–3.0 ml) every 3 days, until the seizures are controlled. The maximum daily dose you should receive is 2,500 mg (25 ml).
Your doctor may decrease your dose if you are taking other antiepileptic drugs, have poor kidney function or you are an elderly patient.
Children and adolescents
The dose for children will depend on their weight. This is usually 20–40 mg (0.2–0.4 ml) for each kg of body weight.
Your treatment with Episenta Injection will be changed to oral therapy (by mouth) as soon as possible.
Your doctor may decide to adjust your dose.
You or your child may be taking other medicines for epilepsy at the same time as Episenta Injection. If so, your doctor should gradually initiate treatment depending on your or your child’s condition.
Your doctor may increase the dose of Episenta Injection by 5–10 mg for each kg of body weight each day depending on which other medicines you are taking.
Episenta Injection will be given to you by a doctor, who will ensure that the correct dose is given for your condition. If you have any concerns tell your doctor or nurse.
It is important for you to keep having your Episenta Injection treatment until your doctor decides to stop. If you stop, your seizures may return.
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. Episenta 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. If you or your child go into hospital or visit another doctor or a dentist, tell them you are taking Episenta Injection.
If you have any further questions on the use of this medicine, ask your doctor, pharmacist or nurse.
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:
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.
Tests
Episenta Injection can change levels of liver enzymes, blood clotting factors, salts or sugars shown up on blood and urine tests.
Additional side effects in children
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 behavior, hyperactivity and learning disorder.
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 the Yellow Card Scheme at: www.mhra.gov.uk/yellowcard or search 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.
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 after “Exp.:”. The expiry date refers to the last day of that month.
Do not use this medicine if you notice signs of deterioration such as crystallisation or discolouring.
Do not freeze the medicine.
Episenta solution for injection may be diluted with 0.9 % saline or 5 % dextrose before infusion. Your hospital pharmacy will ensure that the solution for injection is diluted and stored in an appropriate manner.
Episenta solution for injection is a clear colourless solution. It is available in glass (type I) ampoules with silicone coating on the inside containing either 3 ml or 10 ml of the solution for injection. Each pack contains 5 ampoules.
This leaflet was last revised in 08/2024