Patient leaflets and SmPCs, drug interaction checker, official dosages and NHS pharmacy opening hours — all in one place.
Patient leaflets and SmPCs, drug interaction checker, official dosages and NHS pharmacy opening hours — all in one place.
The electronic medicines compendium (emc) no longer publishes a Summary of Product Characteristics for this product, which usually means it is no longer marketed in the UK. The patient leaflet below is kept for reference, but the product may not be available.
If you were prescribed this medicine, other products containing Interferon beta-1b may still be available. Do not stop your treatment — ask your pharmacist or GP what to use instead.
for
What Betaferon is Betaferon is a type of medicine known as interferon used to treat multiple sclerosis. Interferons are proteins produced by the body that help fight against attacks on the immune system such as viral infections. How Betaferon works Multiple sclerosis (MS) is a long-term condition that affects the central nervous system (CNS), particularly the functioning of the brain and spinal cord. In MS, inflammation destroys the protective sheath (called myelin) around the nerves of the CNS and stops the nerves from working properly. This is called demyelination. The exact cause of MS is unknown. An abnormal response by the body's immune system is thought to play an important part in the process which damages the CNS. The damage to the CNS can occur within an MS attack (relapse). It can cause disability temporarily, such as difficulty walking. Symptoms may disappear completely or partly. Interferon beta-1b has been shown to change the response of the immune system and to help to reduce disease activity. How Betaferon helps fight your disease Single clinical event indicating a high risk of developing multiple sclerosis: Betaferon has been shown to delay progression to definite multiple sclerosis. Relapsing-remitting multiple sclerosis: People with relapsing-remitting MS have occasional attacks or relapses during which symptoms become noticeably worse. Betaferon has been shown to cut down the number of attacks and make them less severe. It reduces the number of hospital stays due to the disease and prolongs the time without relapses. GB V004_0
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Secondary progressive multiple sclerosis: In some cases people with relapsing-remitting MS find that their symptoms increase and they progress to another form of MS called secondary progressive MS. With this, people find themselves becoming increasingly impaired, whether or not they have relapses. Betaferon can reduce the number and severity of the attacks, and slow the progression of disability. What Betaferon is used for Betaferon is for use in patients ►
who have experienced symptoms for the first time which indicate a high risk of developing multiple sclerosis. Your doctor will rule out any other reasons which could explain these symptoms before you are treated.
►
who suffer from relapsing-remitting multiple sclerosis, with at least two relapses within the last two years.
►
who suffer from secondary progressive multiple sclerosis with active disease shown by relapses.
2.
e Betaferon
Do not use Betaferon –
if you are allergic (hypersensitive) to natural or recombinant interferon beta, human albumin or any of the other ingredients of this medicine (listed in section 6). if you currently suffer from severe depression and/or suicidal thoughts (see 'Warnings and precautions' and section 4 'Possible side effects'). if you have severe liver disease (see 'Warnings and precautions', 'Other medicines and Betaferon' and section 4 'Possible side effects'). ► Tell your doctor if any of the above applies to you.
Warnings and precautions Talk to your doctor before you start using Betaferon: −
If you have monoclonal gammopathy. This is a disorder of the immune system where an abnormal protein is found in the blood. Problems with your small blood vessels (capillaries) may develop when using medicines like Betaferon (systemic capillary leak syndrome). This can lead to shock (collapse) and even be fatal.
−
If you have had depression or are depressed or previously had thoughts of suicide. Your doctor will closely monitor you during treatment. If your depression and/or suicidal thoughts are severe, you will not be prescribed Betaferon (see also 'Do not use Betaferon').
−
If you have ever had seizures or if you are taking medicines to treat epilepsy (antiepileptics), your doctor will monitor your treatment carefully (see also 'Other medicines and Betaferon' and section 4. 'Possible side effects').
−
If you have severe kidney problems your doctor may monitor your kidney function during treatment.
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Your doctor also needs to know the following whilst you are using Betaferon: −
If you experience symptoms such as itching all over your body, swelling of your face and/or your tongue or sudden shortness of breath. These may be symptoms of a serious allergic reaction (hypersensitivity), which may become life threatening.
−
If you feel noticeably more sad or hopeless than before the treatment with Betaferon, or if you develop thoughts of suicide. If you become depressed while you are on Betaferon, you may need special treatment and your doctor will closely monitor you and may also consider stopping your treatment. If you suffer from severe depression and/or suicidal thoughts, you will not be treated with Betaferon (see also 'Do not use Betaferon').
−
If you notice any unusual bruising, excessive bleeding after injury or if you seem to be catching a lot of infections. These may be symptoms of a fall in your blood cell count or in the number of platelets in your blood (cells, which help the blood to clot). You may need extra monitoring by your doctor.
−
If you have loss of appetite, fatigue, feeling sick (nausea), repeated vomiting, especially if you notice widespread itching, yellowing of the skin or of the whites of the eyes, or easy bruising. These symptoms may suggest problems with your liver. Changes to the liver function values occurred in patients treated with Betaferon during clinical studies. As for other beta interferons, severe liver damage, including cases of liver failure, have been reported rarely in patients taking Betaferon. The most serious were reported in patients taking other medicines or who were suffering from diseases that can affect the liver (e.g. alcohol abuse, severe infection).
−
If you experience symptoms like irregular heartbeat, swelling such as of the ankles or legs, or shortness of breath. This may suggest a disease of the heart muscle (cardiomyopathy) which has been reported rarely in patients using Betaferon.
−
If you notice pain in your belly which is radiating to your back, and/or you feel sick or have a fever. This may suggest an inflammation of the pancreas (pancreatitis), which has been reported with Betaferon use. This is often associated with an increase of certain blood fats (triglycerides). ► Stop using Betaferon and tell your doctor immediately if any of these happens to you.
Other things to consider when using Betaferon −
You will need blood tests to measure the number of your blood cells, blood chemistry and your liver enzymes. This will be done before you start using Betaferon, regularly after treatment with Betaferon has been initiated and periodically whilst you are on it, even if you have no particular symptoms. These blood tests will be in addition to the tests, which are normally done to monitor your MS.
−
If you have a heart disease, the flu-like symptoms, which often occur at the start of treatment, may prove stressful to you. Betaferon must be used with caution, and your doctor will monitor you for worsening of your heart condition, particularly during the start of treatment. Betaferon itself does not affect the heart directly.
−
You will have a check of the function of your thyroid gland, regularly or whenever thought necessary by your doctor for other reasons.
−
Betaferon contains human albumin and therefore carries a potential risk for transmission of viral diseases. A risk of transmission of Creutzfeld-Jacob disease (CJD) cannot be ruled out.
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−
During treatment with Betaferon your body may produce substances called neutralising antibodies, which may react with Betaferon (neutralising activity). It is not yet clear whether these neutralising antibodies reduce the effectiveness of the treatment. Neutralising antibodies are not produced in all patients. Currently it is not possible to predict which patients belong to this group.
−
During treatment with Betaferon, kidney problems that may reduce your kidney function, including scarring (glomerulosclerosis), may occur. Your doctor may perform tests to check your kidney function.
−
Blood clots in the small blood vessels may occur during your treatment. These blood clots could affect your kidneys. This might happen several weeks to several years after starting Betaferon. Your doctor may want to check your blood pressure, blood (platelet count) and the function of your kidney.
−
Paleness, yellow skin or dark-colored urine, possibly accompanied by unusual dizziness, tiredness or shortness of breath may occur during your treatment. These may be symptoms of a breakdown of red blood cells. This might happen several weeks to several years after starting Betaferon. Your doctor may perform blood tests. Inform your doctor about other medicines that you are taking at the same time as Betaferon.
Injection site reactions During Betaferon treatment you are likely to experience injection site reactions. Symptoms include redness, swelling, change in the skin colour, inflammation, pain and hypersensitivity. Infection around the injection site and skin breakdown and tissue damage (necrosis) are reported less frequently. Injection site reactions usually become less frequent over time. Injection site skin and tissue breakdown can result in scars forming. If this is severe a doctor may have to remove foreign matter and dead tissue (debridement) and, less often, skin grafting is required and healing may take up to 6 months. To reduce the risk of getting injection site reactions, such as infection or necrosis, you must: − use a sterile (aseptic) injection technique, − rotate the injection sites with each injection (see Annex 'Self-injection procedure', Part II, in the second part of this leaflet). Injection site reactions may occur less frequently, if you use an auto-injector device and by rotating injection sites. Your doctor or nurse can tell you more about this. If you experience any break in the skin, which may be associated with swelling or fluid leaking out from the injection site: ► Stop injections with Betaferon and talk to your doctor ► If you have only one sore injection site (lesion) and the tissue damage (necrosis) is not too extensive you may continue using Betaferon. ► If you have more than one sore injection site (multiple lesions) you must stop using Betaferon until your skin has healed. Your doctor will regularly check the way you inject yourself, particularly if you have experienced injection site reactions. Children and adolescents There have been no formal clinical trials undertaken in children or adolescents. GB V004_0
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However, there is some data available in children and adolescents from 12 to 16 years. This data suggests that the safety profile from this age is the same as in adults for use of Betaferon 8.0 million IU under the skin every other day. There is no information on the use of Betaferon in children under 12 years of age. Therefore, Betaferon should not be used in this population. Other medicines and Betaferon Tell your doctor or pharmacist if you are using, have recently used or might use any other medicines, including medicines obtained without a prescription. No formal interaction studies have been carried out to find out whether Betaferon affects other medicines or is affected by them. Using Betaferon with other medicines that modify the immune system response is not recommended, except anti-inflammatory medicines called corticosteroids or the adrenocorticotropic hormone (ACTH). Betaferon should be used with caution with: medicines which need a certain liver enzyme system (known as cytochrome P450 system) for their removal from the body, for example medicines used to treat epilepsy (like phenytoin). medicines which affect the production of blood cells. Betaferon with food and drink Betaferon is injected under the skin so any food or drink you consume is not thought to have any effect on Betaferon. Pregnancy and breast-feeding If you are pregnant, think you may be pregnant or are planning to have a baby, ask your doctor or pharmacist for advice before taking this medicine. No harmful effects on the breastfed newborn/infant are anticipated. Betaferon can be used during breast-feeding. Driving and using machines Betaferon may cause side effects in the central nervous system (see section 4. 'Possible side effects'). If you are especially sensitive, this might affect your ability to drive or use machines. Betaferon contains mannitol, human albumin and sodium The inactive ingredients of Betaferon include:
Betaferon
Treatment with Betaferon should be started under the supervision of a doctor who is experienced in the treatment of multiple sclerosis.
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Always use this medicine exactly as your doctor has told you. Check with your doctor, pharmacist or nurse if you are not sure. The recommended dose is: Every other day (once every two days), 1.0 ml of the prepared Betaferon solution (see Annex 'Selfinjection procedure' in the second part of this leaflet) injected under the skin (subcutaneously). This equals 250 microgram (8.0 million IU) interferon beta-1b. When starting treatment with Betaferon, it is tolerated best by gradually increasing the dose, i.e. starting with just 0.25 ml of the medication and then increasing, after every 3rd injection, first to 0.5 ml, then to 0.75 ml and then finally to the full dose (1 ml) of Betaferon. Your doctor may decide, together with you, to change the time interval between increases in the dose depending on side effects you may experience at the start of treatment. To easily increase the dosage during the first 12 injections, you may be given a special titration pack, containing four differently coloured packs with specially marked syringes and with detailed instructions on the separate introductory leaflet for titration pack. Preparing the injection Before injection, the Betaferon solution has to be prepared from a vial of Betaferon powder and 1.2 ml of liquid from the pre-filled solvent syringe. This will either be done by your doctor or nurse or by yourself after you have been carefully trained. For details how the Betaferon solution for injection is prepared see Annex 'Self-injection procedure', Part I. Detailed instructions for self-injection of Betaferon under the skin are provided in Part IE of the Annex 'Self-injection procedure'. The injection site must be changed regularly. See section 2. 'Warnings and precautions' and follow the instructions in Part II 'Rotating injection sites' and Part III (Betaferon Medication Record) of the Annex 'Self-injection procedure'. Duration of treatment At present it is not known how long treatment with Betaferon should last. The length of treatment will be decided by your doctor together with you. If you use more Betaferon than you should Giving many times the dose of Betaferon recommended for the treatment of multiple sclerosis has not led to life-threatening situations. ► Talk to your doctor if you injected too much Betaferon or injected it too often. If you forget to use Betaferon If you have forgotten to give yourself an injection at the right time do it as soon as you remember and then follow on with the next one 48 hours later. Do not inject a double dose to make up for a forgotten single dose. If you stop using Betaferon Talk to your doctor if you stop or wish to stop treatment. Stopping Betaferon is not known to lead to acute withdrawal symptoms. ►
If you have any further questions on the use of this medicine, ask your doctor, pharmacist or nurse.
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4.
Possible side effects
Like all medicines, this medicine can cause side effects, although not everybody gets them. Betaferon may cause serious side effects. If any of the side effects get serious, or if you notice any side effects not listed in this leaflet, please tell your doctor, pharmacist or nurse. ► Tell your doctor immediately and stop using Betaferon: −
if you experience symptoms such as itching all over your body, swelling of your face and/or your tongue or sudden shortness of breath.
−
if you feel noticeably more sad or hopeless than before the treatment with Betaferon, or if you develop thoughts of suicide.
−
if you notice any unusual bruising, excessive bleeding after injury or if you seem to be catching a lot of infections.
−
if you have loss of appetite, fatigue, feeling sick, repeated vomiting, especially if you notice widespread itching, yellowing of the skin or of the whites of the eyes, or easy bruising.
−
if you experience symptoms like irregular heartbeat, swelling such as of the ankles or legs, or shortness of breath.
−
if you notice pain in your belly which is radiating to your back, and/or you feel sick or have a fever.
►
Tell your doctor immediately:
−
if you get some or all of these symptoms: foamy urine, fatigue, swelling, particularly in the ankles and eyelids, and weight gain, as they may be signs of a possible kidney problem.
At the beginning of treatment side effects are common but in general they become less with further treatment. The most frequently observed side effects are: ►
Flu-like symptoms such as fever, chills, painful joints, malaise, sweating, headache, or muscular pain. These symptoms may be reduced by taking paracetamol or nonsteroidal anti-inflammatory medicines such as ibuprofen.
►
Injection site reactions. Symptoms can be redness, swelling, discolouration, inflammation, infection, pain, hypersensitivity, tissue damage (necrosis). See 'Warnings and precautions' in section 2 for more information and what to do, if you experience an injection site reaction. These may be reduced by the use of an autoinjector device and by rotating injection sites. Talk to your doctor, pharmacist or nurse for further information.
To reduce side effects at the start of treatment, your doctor should start you on a low dose of Betaferon and increase it gradually (see section 3. 'How to use Betaferon'). The following side effects listing is based on reports from clinical trials with Betaferon and from
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► ► ► –
Very common (may affect more than 1 in 10 users): reduced number of white blood cells headache sleep disorder (insomnia) abdominal pain a specific liver enzyme (alanine aminotransferase or ALAT) may rise (this will show up in blood tests) rash skin disorder painful muscles (myalgia) muscle stiffness (hypertonia) painful joints (arthralgia) urinary urgency injection site reaction (including redness, swelling, discolouration, inflammation, pain, infection, allergic reactions (hypersensitivity) flu-like symptoms, pain, fever, chills, accumulation of fluid in arm or leg (peripheral oedema), lack/loss of strength (asthenia) Common (may affect up to 1 in 10 users): swollen lymph glands (lymphadenopathy) the number of red cells in the blood may fall (anaemia) the thyroid gland does not work properly (too little hormone is produced) (hypothyroidism) weight increase or decrease confusion abnormally rapid heartbeat (tachycardia) increased blood pressure (hypertension) a specific liver enzyme (aspartate aminotransferase or ASAT) may rise (this will show up in blood tests) shortness of breath (dyspnoea) a reddish yellow pigment (bilirubin), which is produced by your liver, may rise (this will show up in blood tests) swollen and usually itchy patches of skin or mucous membranes (urticaria) itching (pruritus) loss of scalp hair (alopecia) menstrual disorders (menorrhagia) heavy uterine bleeding (metrorrhagia) especially between menstrual periods impotence skin breakdown and tissue damage (necrosis) at the injection site (see section 2'Warnings and precautions') chest pain malaise Uncommon (may affect up to 1 in 100 users): the number of platelets (which help the blood to clot) may fall (thrombocytopenia) a certain type of blood fats (triglycerides) may increase (will show up in blood tests), see section 2 'Warnings and precautions' suicide attempt mood swings convulsion a specific liver enzyme (gamma GT) which is produced by your liver, may rise (this will show up in blood tests) inflammation of the liver (hepatitis) skin discolouration
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–
kidney problems, including scarring (glomerulosclerosis) that may reduce your kidney function
►
Rare (may affect up to 1 in 1,000 users):
–
–
blood clots in the small blood vessels that can affect your kidneys (thrombotic thrombocytopenic purpura or haemolytic uremic syndrome). Symptoms may include increased bruising, bleeding, fever, extreme weakness, dizziness or light-headedness. Your doctor may find changes in your blood and the function of your kidneys serious allergic (anaphylactic) reactions the thyroid gland does not work properly (thyroid disorders), too much hormone is produced (hyperthyroidism) severe loss of appetite leading to weight loss (anorexia) disease of the heart muscle (cardiomyopathy) sudden shortness of breath (bronchospasm) inflammation of the pancreas (pancreatitis), see section 2 'Warnings and precautions' the liver does not work properly (hepatic injury including hepatitis, hepatic failure)
►
Not known (frequency cannot be estimated from the available data)
–
–
–
breakdown of red blood cells (haemolytic anaemia) problems with your small blood vessels may develop when using medicines like Betaferon (systemic capillary leak syndrome) depression, anxiety dizziness irregular, rapid beating or pulsation of the heart (palpitation) redness and/or facial flushing due to widening of blood vessels (vasodilation) severe narrowing of the blood vessels in the lungs resulting in high blood pressure in the blood vessels that carry blood from the heart to the lungs (pulmonary arterial hypertension). Pulmonary arterial hypertension has been seen at various time points during treatment, including several years after starting treatment with Betaferon nausea vomiting diarrhoea rash, redness of the skin in the face, joint pain, fever, weakness and others caused by the medicine (drug-induced lupus erythematosus) menstrual disorder
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 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. 5.
Betaferon
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 pack. The expiry date refers to the last day of that month. GB V004_0
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Do not store above 25°C. Do not freeze. After preparing the solution you should use it immediately. However, if you are not able to do so, it will be suitable for use for 3 hours, if kept at 2-8 °C (in a refrigerator). Do not use Betaferon if you notice it contains particles or is discoloured. 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.
What Betaferon contains The active substance is interferon beta-1b, 250 microgram per millilitre when reconstituted. The other ingredients are − in the powder: mannitol and human albumin, − in the solvent (sodium chloride solution 5.4 mg/ml (0.54% w/v)): sodium chloride, water for injection. The Betaferon powder is provided in a 3-millilitre vial, containing 300 microgram (9.6 million IU) interferon beta-1b per vial. After reconstitution, each millilitre contains 250 microgram (8.0 million IU) interferon beta-1b. The solvent for Betaferon is provided in a 2.25-millilitre pre-filled syringe and contains 1.2 ml sodium chloride solution 5.4 mg/ml (0.54% w/v). What Betaferon looks like and contents of the pack Betaferon is a sterile white to off-white powder for solution for injection. Betaferon is available in pack sizes of: − − − − − − − −
multipacks comprising 5 single packs, each containing 1 vial with powder, 1 pre-filled syringe with solvent, 1 vial adapter with needle, 2 alcohol wipes or multipacks comprising 12 single packs, each containing 1 vial with powder, 1 pre-filled syringe with solvent, 1 vial adapter with needle, 2 alcohol wipes or multipacks comprising 14 single packs, each containing 1 vial with powder, 1 pre-filled syringe with solvent, 1 vial adapter with needle, 2 alcohol wipes or multipacks comprising 15 single packs, each containing 1 vial with powder, 1 pre-filled syringe with solvent, 1 vial adapter with needle, 2 alcohol wipes or 2-month packs comprising 2×14 single packs, each containing 1 vial with powder, 1 pre-filled syringe with solvent, 1 vial adapter with needle, 2 alcohol wipes or 3-month packs comprising 3×15 single packs, each containing 1 vial with powder, 1 pre-filled syringe with solvent, 1 vial adapter with needle, 2 alcohol wipes or 3-month packs comprising 3×14 single packs, each containing 1 vial with powder, 1 pre-filled syringe with solvent, 1 vial adapter with needle, 2 alcohol wipes or titration pack for the first 12 injections comprising 4 triple packs, each containing 3 vials with powder, 3 pre-filled syringes with solvent, 3 vial adapters with needle, 6 alcohol wipes
Not all pack sizes may be marketed.
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Marketing Authorisation Holder and Manufacturer Marketing Authorisation Holder Bayer plc 400 South Oak Way Reading RG2 6AD Manufacturer Bayer AG Müllerstraße 178 13353 Berlin Germany For any information about this medicine, please contact the Marketing Authorisation Holder: Bayer plc Tel: +44-(0)118 206 3000 This leaflet was last revised in 07/2024
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Annex: SELF-INJECTION PROCEDURE Your doctor has prescribed Betaferon to treat your MS. You will best tolerate Betaferon in the beginning if you start with a low dose and gradually increase to the full standard dose (see first part of this leaflet, section 3. 'How to use Betaferon'). To easily increase the dosage during the first 12 injections, you may be given a special titration pack, containing four differently coloured triple packs with special marked syringes and with detailed instructions on the separate introductory leaflet for titration pack. The syringes in this titration pack are marked accordingly with the appropriate doses (0.25; 0.5; 0.75 or 1.0 ml). The following instructions and pictures explain how to prepare Betaferon for injection and how to inject Betaferon yourself. Please read the instructions carefully and follow them step by step. Your doctor or nurse will help you to learn the process of self-administration. Do not attempt to inject yourself until you are sure that you understand how to prepare the injection solution and give the injection to yourself. PART I: STEP BY STEP INSTRUCTIONS The instructions include the following main steps: A) B) C) D) E) F)
General advice Getting ready to inject Reconstituting the solution, step by step Drawing up the injection Making the injection Quick review of the process
A)
General advice
►
Get a good start!
You will find that within a few weeks your treatment will become a natural part of your routine. As you get started, you may find the following helpful: −
Set up a permanent storage area in a convenient location out of the sight and reach of children so your Betaferon and other supplies are always easy to find. For details on storage conditions, see section 5. 'How to store Betaferon' in the first part of this leaflet.
−
Try to give your injection at the same time of day. This makes it easier to remember and easier to plan a block of time when you will not be interrupted.
−
Prepare each dose only when you are ready for an injection. After mixing Betaferon, you should give the injection immediately (if Betaferon is not used immediately, see section 5. 'How to store Betaferon' in the first part of this leaflet).
►
Important tips to keep in mind
−
Be consistent – use Betaferon as described in section 3. 'How to use Betaferon' in the first part of this leaflet. Always double-check your dosage. Keep your syringes and syringe disposal unit out of the sight and reach of children; lock the supplies away if possible. Never re-use syringes or needles. Always use a sterile (aseptic) technique as described in here. Always place the used syringes in the proper disposal unit.
− − − −
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B)
Getting ready to inject
►
Choosing an injection site
Before preparing your injection, decide where you are going to inject. You should inject Betaferon into the fatty layer between the skin and muscle (that is, subcutaneously, about 8 to 12 mm under the skin). The best places for injections are where the skin is loose and soft, and away from joints, nerves, or bones, for example the abdomen, arm, thigh or buttocks. Important: Do not use any area where you can feel lumps, bumps, firm knots, pain or an area that is discoloured, indented, scabbed, or where the skin is broken. Talk to your doctor or nurse about these or any other unusual conditions you may find. You should rotate the injection site at every injection. If some areas are too difficult for you to reach, you may need a family member or friend to help you with these injections. Follow the sequence described in the schedule at the end of the Annex (see Part II, 'Rotating injection sites') and you will come back to your first injection site area after 8 injections (16 days). This will give each injection site a chance to fully recover before receiving another injection. Please refer to the rotation schedule at the end of this Annex to learn how to choose an injection site. An example of a medication record is also included (see Annex Part III). This should give you an idea of how you can keep track of your injection sites and dates. ►
Checking the content of the pack
In the Betaferon pack you will find: − 1 Betaferon vial (with powder for solution for injection), − 1 pre-filled syringe of solvent for Betaferon (sodium chloride solution 5.4 mg/ml (0.54% w/v)), − 1 vial adapter with a pre-attached needle, − 2 alcohol swabs. In addition you will need a disposal unit for used syringes and needles. For skin disinfection use an appropriate disinfectant. If you have a Betaferon titration pack you will find 4 differently coloured and numbered triple packs, each containing:
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C)
Reconstituting the solution, step by step 1 – Wash your hands thoroughly with soap and water before beginning this process.
2 – Open the Betaferon vial and put it on the table. It is best to use your thumb rather than your nail as it could break.
3 – Wipe the top of the vial with an alcohol swab, moving the swab in one direction only. Leave the swab on top of the vial.
4 – Open the blister pack containing the vial adapter, but leave the vial adapter inside. Do not remove the vial adapter from the blister pack at this stage. Do not touch the vial adapter. This is to keep it sterile. 5 – Before attaching the adapter remove and discard the alcohol swab and rest the vial on a flat surface. 6 – Hold the blister pack on the outside and place it on top of the vial. Push it down firmly until you feel it snap into place on the vial.
7 – Remove the blister pack from the vial adapter, holding the blister edges. Now you are ready to attach the pre-filled solvent syringe to the vial adapter.
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8 – Pick up the syringe. Be sure that the orange tip cap is firmly attached to the solvent syringe! Remove the tip cap by twisting it off. Throw away the tip cap.
9 – Connect the syringe to the opening on the side of the vial adapter by inserting the end of the syringe and tightening carefully with a clockwise "push and twist" motion (see arrow). This will form the syringe assembly.
10 – Hold the syringe assembly at the bottom of the vial. Slowly push the plunger of the syringe in all the way to transfer all of the solvent into the vial. Release the plunger, which may go back to its original position. This applies also to the titration pack.
11 – With the syringe assembly still attached, swirl the vial around gently to completely dissolve the dry Betaferon powder. Do not shake the vial.
12 – Examine the solution carefully. It should be clear and contain no particles. If the solution is discoloured or contains particles, discard it and start again with a new single pack of supplies. If foam is present — which can happen if the vial is shaken or swirled too much – let the vial sit undisturbed until the foam settles.
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D)
Drawing up the injection 13 – If the plunger has moved back to its original position push it in again and hold it in place. To prepare your injection, turn the assembly over so that the vial is on top, cap side pointing down. Doing this allows the solution to flow down into the syringe. Keep the syringe horizontal. Slowly pull the plunger back to withdraw all the solution out of the vial and into the syringe. With the titration pack, withdraw solution only up to the mark on the syringe: 0.25 ml for first three injections (at day 1, 3, 5 of therapy), or 0.5 ml for the injections at day 7, 9, 11 of therapy, or 0.75 ml for the injections at day 13, 15, 17 of therapy. Discard the vial with any remaining solution. From day 19 you are injecting the full dose 1.0 ml. 14 – After drawing up the solution turn the syringe assembly so that the needle is pointing up. This allows any air bubbles to rise to the top of the solution. 15 – Remove any air bubbles by gently tapping the syringe and pushing the plunger to the 1-ml mark, or to the volume prescribed by your doctor. If you are injecting less than 1 ml with the titration pack there might not be any air bubbles, however for full dose injection some air bubbles might turn up. Remove them by gently tapping the syringe and pushing the plunger to the respective marking on the syringe. If too much solution enters the vial along with the air bubbles, get back into the horizontal position (see pict. 13) and pull the plunger back a little to withdraw the solution back into the syringe. 16 – Next, hold the blue vial adapter with the attached vial and remove it from the syringe by twisting it and then pulling it down, away from the syringe. Only hold the blue plastic adapter when removing. Keep the syringe in a horizontal position and the vial below the syringe. Removing the vial and adapter from the syringe ensures that the solution will flow out from the needle when injected.
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17 – Dispose of the vial and any unused portion of the solution in the disposal unit 18 – You are now ready to inject. If, for some reason, you are not able to inject the Betaferon immediately, you can keep the reconstituted solution in the syringe in a refrigerator for up to 3 hours before using. Do not freeze the solution, and do not wait longer than 3 hours to inject it. If more than 3 hours pass, discard the reconstituted Betaferon solution and prepare a new injection. When you use the solution, warm it up in your hands before injecting to avoid pain. E)
Making the injection 1 – Choose an area for the injection (see advice at the start and the diagrams at the end of this Annex), and make a note of it in your medication record. 2 – Use an alcohol swab to wipe the skin at the injection site. Let the skin air-dry. Throw the swab away. For skin disinfection use an appropriate disinfectant.
3 – Remove the cap from the needle by pulling not twisting it.
4 – Gently pinch the skin together around the disinfected injection site (to raise it up a little). 5 – Holding the syringe like a pencil or a dart, push the needle straight into the skin at a 90 ̊ angle with a quick, firm motion. Please note: Betaferon can also be administered with an auto-injector. 6 – Inject the medicine using a slow, steady push on the plunger. (Push the plunger all the way in until the syringe is empty.) 7- Discard the syringe in the disposal unit. F)
Quick review of the process –
Take out the required content for one injection Attach vial adapter to the vial Connect the syringe to the vial adapter Push syringe plunger to transfer all the solvent into the vial Turn the syringe assembly over and draw up the prescribed amount of the solution Remove vial from syringe – you are now ready to inject.
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NOTE: The injection should be administered immediately after mixing (if the injection is delayed, refrigerate the solution and inject it within 3 hours). Do not freeze. PART II:
ROTATING INJECTION SITES
You need to choose a new site for each injection to allow the area time to recover and help prevent infection. Advice on which areas to choose is given in the first part of this Annex. It is a good idea to know where you plan to inject before you prepare your syringe. The schedule shown in the diagram below will help you to vary the sites appropriately. For example, give the first injection into the right side of the abdomen, choose the left side for the second injection, then move to the right thigh for the third, and so on through the diagram until all suitable areas of the body have been used. Keep a record of where and when you last gave yourself an injection. One way to do that is to note the injection site on the enclosed medication record card. By following this schedule, you will come back to your first area (e.g. the right side of the abdomen) after 8 injections (16 days). This is called a Rotation Cycle. On our example schedule each area is split again into 6 injection sites (which adds up to 48 injection sites all together), left and right: upper, middle and lower part of each area. If you come back to an area after one Rotation Cycle, choose the most distant injection site within this area. If an area becomes sore, talk to your doctor or nurse about choosing other injection sites. Rotation Schedule: To help you rotate the injection sites appropriately, we recommend that you keep a record of the date and location of your injection. You can use the following rotation schedule. Work through each rotation cycle in turn. Each cycle will be 8 injections (16 days), given in area 1 through to area 8 in turn. By following this sequence, you will give each area a chance to recover before receiving another injection. Rotation Cycle 1:
Upper left section of each area
Rotation Cycle 2:
Lower right section of each area
Rotation Cycle 3:
Middle left section of each area
Rotation Cycle 4:
Upper right section of each area
Rotation Cycle 5:
Lower left section of each area
Rotation Cycle 6:
Middle right section of each area
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ROTATION SCHEDULE:
AREA 1
AREA 2
AREA 3
AREA 4 10 – 15 cm from groin
AREA 5
AREA 6
AREA 8
AREA 7
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PART III: BETAFERON MEDICATION RECORD Instructions for keeping track of your injection sites and dates –
–
–
Select an injection site for your first injection. Wipe the injection site with an alcohol swab and let it air-dry. After your injection, fill in the used injection site and date on the table in your injection record (see the example: 'Keeping track of your injection sites and dates').
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EXAMPLE OF A MEDICATION RECORD:
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Separate Annex: INTRODUCTORY LEAFLET FOR TITRATION PACK Your doctor has prescribed Betaferon to treat your MS. You will best tolerate Betaferon in the beginning if you start with a low dose and gradually increase to the full standard dose (see first part of the package leaflet, section 3. 'How to use Betaferon'). The syringes in this titration pack are marked accordingly with the appropriate doses (0.25; 0.5; 0.75 or 1.0 ml). ►
Checking the content of the pack
You will find in the Betaferon titration pack 4 differently coloured and numbered triple packs, each containing:
For a description of how to prepare and use the Betaferon powder, please refer to section 3. 'How to use Betaferon' in the first part of the package leaflet and to the Annex 'Self-injection procedure' in the second part of the package leaflet. In addition, you will need a disposal unit for used syringes and needles. GB V004_0
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Betaferon 250 microgram/ml, powder and solvent for solution for injection comes as injection containing 250microgram/ml. Always follow the dose your doctor or pharmacist has given you, and read the leaflet that comes with the medicine.
The active substance in Betaferon 250 microgram/ml, powder and solvent for solution for injection is interferon beta-1b.
This leaflet reproduces the patient information leaflet approved for Betaferon 250 microgram/ml, powder and solvent for solution for injection, as published on the electronic medicines compendium (emc). The version printed inside your medicine’s packaging is the one that applies to you.
Whether a medicine is available over the counter or on prescription only depends on its licence. Check the leaflet, or ask your pharmacist — they can tell you straight away.
The text above reproduces the patient information leaflet approved for this medicine, restructured for easier reading.
Betaferon is indicated for the treatment of
• patients with a single demyelinating event with an active inflammatory process, if it is severe enough to warrant treatment with intravenous corticosteroids, if alternative diagnoses have been excluded, and if they are determined to be at high risk of developing clinically definite multiple sclerosis (see section 5.1).
• patients with relapsing-remitting multiple sclerosis and two or more relapses within the last two years.
• patients with secondary progressive multiple sclerosis with active disease, evidenced by relapses.
The treatment with Betaferon should be initiated under the supervision of a physician experienced in the treatment of the disease.
Posology
Adults
The recommended dose of Betaferon is 250 microgram (8.0 million IU), contained in 1 ml of the reconstituted solution (see section 6.6), to be injected subcutaneously every other day.
Paediatric population
No formal clinical trials or pharmacokinetic studies have been conducted in children or adolescents. However, limited published data suggest that the safety profile in adolescents from 12 to 16 years of age receiving Betaferon 8.0 million IU subcutaneously every other day is similar to that seen in adults. There is no information on the use of Betaferon in children under 12 years of age. Therefore Betaferon should not be used in this population.
Generally, dose titration is recommended at the start of treatment.
Patients should be started at 62.5 microgram (0.25 ml) subcutaneously every other day, and increased slowly to a dose of 250 microgram (1.0 ml) every other day (see Table A). The titration period may be adjusted, if any significant adverse reaction occurs. In order to obtain adequate efficacy, a dose of 250 microgram (1.0 ml) every other day should be reached.
A titration pack composed of four triple packs is available for the titration period and the patient's initial treatment with Betaferon. This package meets the patient's needs for the first 12 injections. The triple packs are highlighted in different colours (see section 6.5).
Table A: Schedule for dose titration*
treatment day
dose
volume
1, 3, 5
62.5 microgram
0.25 ml
7, 9, 11
125 microgram
0.5 ml
13, 15, 17
187.5 microgram
0.75 ml
19, 21, 23 et seq.
250 microgram
1.0 ml
* The titration period may be adjusted, if any significant adverse reaction occurs.
The optimal dose has not been fully clarified.
At the present time, it is not known how long the patient should be treated for. There are follow-up data under controlled clinical conditions for patients with relapsing-remitting MS for up to 5 years and for patients with secondary progressive MS for up to 3 years. For relapsing-remitting MS, efficacy has been demonstrated for therapy for the first two years. The available data for the additional three years are consistent with sustained treatment efficacy of Betaferon over the whole time period.
In patients with a single clinical event suggestive of multiple sclerosis, the progression to clinically definite multiple sclerosis was significantly delayed over a period of five years.
Treatment is not recommended in patients with relapsing-remitting multiple sclerosis who have experienced less than 2 relapses in the previous 2 years or in patients with secondary-progressive multiple sclerosis who have had no active disease in the previous 2 years.
If the patient fails to respond, for example a steady progression in Expanded Disability Status Scale (EDSS) for 6 months occurs or treatment with at least 3 courses of ACTH or corticosteroids during a one year period is required despite Betaferon therapy, treatment with Betaferon should be stopped.
Method of administration
For subcutaneous injection.
For instructions on reconstitution of the medicinal product before administration, see section 6.6.
- Patients with a history of hypersensitivity to natural or recombinant interferon beta, human albumin or to any of the excipients listed in section 6.1.
- Patients with current severe depression and/or suicidal ideation (see sections 4.4 and 4.8).
- Patients with decompensated liver disease (see sections 4.4, 4.5 and 4.8).
Traceability
In order to improve traceability of biological medicinal products, the name and the batch number of the administered product should be clearly recorded.
Immune system disorders
The administration of cytokines to patients with a pre-existing monoclonal gammopathy has been associated with the development of systemic capillary leak syndrome with shock-like symptoms and fatal outcome.
Gastrointestinal disorders
In rare cases, pancreatitis was observed with Betaferon use, often associated with hypertriglyceridemia.
Nervous system disorders
Betaferon should be administered with caution to patients with previous or current depressive disorders, in particular to those with antecedents of suicidal ideation (see section 4.3). Depression and suicidal ideation are known to occur with increased frequency in the multiple sclerosis population and in association with interferon use. Patients treated with Betaferon should be advised to report any symptoms of depression and/or suicidal ideation to their prescribing physician immediately. Patients exhibiting depression should be monitored closely during therapy with Betaferon and treated appropriately. Cessation of therapy with Betaferon should be considered (see also sections 4.3 and 4.8).
Betaferon should be administered with caution to patients with a history of seizures and to those receiving treatment with anti-epileptics, particularly if their epilepsy is not adequately controlled with anti-epileptics (see sections 4.5 and 4.8).
This product contains human albumin and hence carries a potential risk for transmission of viral diseases. A risk for transmission of Creutzfeld-Jacob disease (CJD) cannot be excluded.
Laboratory test
Thyroid function tests are recommended regularly in patients with a history of thyroid dysfunction or as clinically indicated.
In addition to those laboratory tests normally required for monitoring patients with multiple sclerosis, complete blood and differential white blood cell counts, platelet counts, and blood chemistries, including liver function tests (e.g. AST (SGOT), ALT (SGPT) and Gamma-GT), are recommended prior to initiation and at regular intervals following introduction of Betaferon therapy, and then periodically thereafter in the absence of clinical symptoms.
Patients with anaemia, thrombocytopenia, leukopenia (alone or in any combination) may require more intensive monitoring of complete blood cell counts, with differential and platelet counts. Patients who develop neutropenia should be monitored closely for the development of fever or infection. There have been reports of thrombocytopenia, with profound decreases in platelet count.
Hepatobiliary disorders
Asymptomatic elevations of serum transaminases, in most cases mild and transient, occurred very commonly in patients treated with Betaferon during clinical trials. As for other beta interferons, severe hepatic injury, including cases of hepatic failure, has been reported rarely in patients treated with Betaferon. The most serious events often occurred in patients exposed to other drugs or substances known to be associated with hepatotoxicity or in the presence of comorbid medical conditions (e.g. metastasising malignant disease, severe infection and sepsis, alcohol abuse).
Patients should be monitored for signs of hepatic injury. The occurrence of elevations in serum transaminases should lead to close monitoring and investigation. Withdrawal of Betaferon should be considered if the levels significantly increase or if they are associated with clinical symptoms such as jaundice. In the absence of clinical evidence for liver damage and after normalisation of liver enzymes a reintroduction of therapy could be considered with appropriate follow-up of hepatic functions.
Renal and urinary disorders
Caution should be used and close monitoring considered when administering interferon beta to patients with severe renal failure.
Nephrotic Syndrome
Cases of nephrotic syndrome with different underlying nephropathies including collapsing focal segmental glomerulosclerosis (FSGS), minimal change disease (MCD), membranoproliferative glomerulonephritis (MPGN) and membranous glomerulopathy (MGN) have been reported during treatment with interferon beta products. Events were reported at various time points during treatment and may occur after several years of treatment with interferon beta. Periodic monitoring of early signs or symptoms, e.g. oedema, proteinuria and impaired renal function is recommended, especially in patients at higher risk of renal disease. Prompt treatment of nephrotic syndrome is required and discontinuation of treatment with Betaferon should be considered.
Cardiac disorders
Betaferon should also be used with caution in patients who suffer from pre-existing cardiac disorders. Patients with pre-existing significant cardiac disease, such as congestive heart failure, coronary artery disease or arrhythmia, should be monitored for worsening of their cardiac condition, particularly during initiation of treatment with Betaferon.
While Betaferon does not have any known direct-acting cardiac toxicity, symptoms of the flu-like syndrome associated with beta interferons may prove stressful to patients with pre-existing significant cardiac disease. During the post-marketing period very rare reports have been received of worsening of cardiac status in patients with pre-existing significant cardiac disease temporarily associated with the initiation of Betaferon therapy.
Rare cases of cardiomyopathy have been reported. If this occurs and a relationship to Betaferon is suspected, treatment should be discontinued.
Thrombotic microangiopathy (TMA) and haemolytic anaemia (HA)
Cases of thrombotic microangiopathy, manifested as thrombotic thrombocytopenic purpura (TTP) or haemolytic uraemic syndrome (HUS), including fatal cases, have been reported with interferon beta products. Early clinical features include thrombocytopenia, new onset hypertension, fever, central nervous system symptoms (e.g. confusion, paresis) and impaired renal function. Laboratory findings suggestive of TMA include decreased platelet counts, increased serum lactate dehydrogenase (LDH) due to haemolysis and schistocytes (erythrocyte fragmentation) on a blood film. Therefore if clinical features of TMA are observed, further testing of blood platelet levels, serum LDH, blood films and renal function is recommended.
Additionally, cases of HA not associated with TMA, including immune HA, have been reported with interferon beta products. Life-threatening and fatal cases have been reported. Cases of TMA and/or HA have been reported at various time points during treatment and may occur several weeks to several years after starting treatment with interferon beta.
If TMA and/or HA is diagnosed and a relationship to Betaferon is suspected, prompt treatment is required (in case of TMA considering plasma exchange) and immediate discontinuation of Betaferon is recommended.
Hypersensitivity reactions
Serious hypersensitivity reactions (rare but severe acute reactions such as bronchospasm, anaphylaxis and urticaria) may occur. If reactions are severe, Betaferon should be discontinued and appropriate medical intervention instituted.
Injection site reactions
Injection site reactions, including injection site infection and injection site necrosis have been reported in patients using Betaferon (see section 4.8). Injection site necrosis can be extensive and may involve muscle fascia as well as fat and therefore can result in scar formation. Occasionally debridement and, less often, skin grafting are required and healing may take up to 6 months.
If the patient experiences any break in the skin, which may be associated with swelling or drainage of fluid from the injection site, the patient should be advised to consult with his/her physician before continuing injections with Betaferon.
If the patient has multiple lesions Betaferon should be discontinued until healing has occurred. Patients with single lesions may continue on Betaferon provided the necrosis is not too extensive, as some patients have experienced healing of injection site necrosis whilst on Betaferon.
To minimise the risk of injection site infection and injection site necrosis patients should be advised to:
- use an aseptic injection technique
- rotate the injection sites with each dose.
The incidence of injection site reactions may be reduced by the use of an autoinjector. In the pivotal study of patients with a single clinical event suggestive of multiple sclerosis an autoinjector was used in the majority of patients. Injection site reactions as well as injection site necroses were observed less frequently in this study than in the other pivotal studies.
The procedure for the self-administration by the patient should be reviewed periodically, especially if injection site reactions have occurred.
Immunogenicity
As with all therapeutic proteins, there is a potential for immunogenicity. Serum samples in controlled clinical trials were collected every 3 months for monitoring of development of antibodies to Betaferon.
In the different controlled clinical trials in relapsing-remitting multiple sclerosis and secondary progressive multiple sclerosis, between 23% and 41% of the patients developed serum interferon beta-1b neutralising activity confirmed by at least two consecutive positive titres; of these patients, between 43% and 55% converted to a stable antibody negative status (based on two consecutive negative titres) during the subsequent observational period of the respective study.
The development of neutralising activity in these studies is associated with a reduction in clinical efficacy only with regard to relapse activity. Some analyses suggest that this effect might be larger in patients with higher titre levels of neutralising activity.
In the study of patients with a single clinical event suggestive of multiple sclerosis, neutralising activity measured every 6 months was observed at least once in 32% (89) of the patients treated immediately with Betaferon; of these, 60% (53) returned to negative status based on the last available assessment within the 5 year period. Within this period, the development of neutralising activity was associated with a significant increase in newly active lesions and T2 lesion volume on magnetic resonance imaging. However, this did not seem to be associated with a reduction in clinical efficacy (with regard to time to clinically definite multiple sclerosis (CDMS), time to confirmed EDSS progression and relapse rate).
New adverse events have not been associated with the development of neutralising activity.
It has been demonstrated in vitro that Betaferon cross-reacts with natural interferon beta. However, this has not been investigated in vivo and its clinical significance is uncertain.
There are sparse and inconclusive data on patients who have developed neutralising activity and have completed Betaferon therapy.
The decision to continue or discontinue treatment should be based on all aspects of the patient's disease status rather than on neutralising activity status alone.
Excipients
This medicinal product contains less than 1 mmol sodium (23 mg) per ml, that is to say essentially 'sodium-free'.
No interaction studies have been performed.
The effect of alternate-day administration of 250 microgram (8.0 million IU) of Betaferon on drug metabolism in multiple sclerosis patients is unknown. Corticosteroid or ACTH treatment of relapses for periods of up to 28 days has been well tolerated in patients receiving Betaferon.
Due to the lack of clinical experience in multiple sclerosis patients, the use of Betaferon together with immunomodulators other than corticosteroids or ACTH is not recommended.
Interferons have been reported to reduce the activity of hepatic cytochrome P450-dependent enzymes in humans and animals. Caution should be exercised when Betaferon is administered in combination with medicinal products that have a narrow therapeutic index and are largely dependent on the hepatic cytochrome P450 system for clearance, e.g. anti-epileptics. Additional caution should be exercised with any co-medication which has an effect on the haematopoietic system.
No interaction studies with anti-epileptics have been carried out.
Pregnancy
A large amount of data (more than 1000 pregnancy outcomes) from interferon beta registries, national registries and post-marketing experience indicates no increased risk of major congenital anomalies after pre-conception exposure or exposure during the first trimester of pregnancy. However, the duration of exposure during the first trimester is uncertain, because data were collected when interferon beta use was contraindicated during pregnancy, and treatment likely interrupted when pregnancy was detected and/or confirmed. Experience with exposure during the second and third trimester is very limited.
Based on animal data (see section 5.3), there is a possibly increased risk for spontaneous abortion. The risk of spontaneous abortions in pregnant women exposed to interferon beta cannot adequately be evaluated based on the currently available data, but the data do not suggest an increased risk so far.
If clinically needed, the use of Betaferon may be considered during pregnancy.
Breast-feeding
Limited information available on the transfer of interferon beta-1b into breast milk, together with the chemical / physiological characteristics of interferon beta, suggests that levels of interferon beta-1b excreted in human milk are negligible. No harmful effects on the breastfed newborn/infant are anticipated.
Betaferon can be used during breast-feeding.
Fertility
No investigations on fertility have been conducted (see section 5.3).
No studies of the effects on the ability to drive and use machines have been performed.
Central nervous system-related adverse events associated with the use of Betaferon might influence the ability to drive and use machines in susceptible patients.
Summary of the safety profile
At the beginning of treatment adverse reactions are common but in general they subside with further treatment. The most frequently observed adverse reactions are a flu-like symptom complex (fever, chills, arthralgia, malaise, sweating, headache, or myalgia), which is mainly due to the pharmacological effects of the medicinal product, and injection site reactions. Injection site reactions occurred frequently after administration of Betaferon. Redness, swelling, discolouration, inflammation, pain, hypersensitivity, infection, necrosis and non-specific reactions were significantly associated with 250 microgram (8.0 million IU) Betaferon treatment.
The most serious adverse reactions reported include thrombotic microangiopathy (TMA) and haemolytic anaemic (HA).
Generally, dose titration is recommended at the start of treatment in order to increase tolerability to Betaferon (see section 4.2). Flu-like symptoms may also be reduced by administration of non-steroidal anti-inflammatory drugs. The incidence of injection site reactions may be reduced by the use of an autoinjector.
Tabulated list of adverse reactions
The following adverse event listing is based on reports from clinical trials and from the post-marketing surveillance (Table 2, frequencies – where known- based on pooled clinical trials (very common ≥1/10, common ≥1/100 to <1/10, uncommon ≥ 1/1,000 to < 1/100, rare ≥1/10,000 to <1/1,000, very rare < 1/10,000)) of Betaferon use.
The most appropriate MedDRA term is used to describe a certain reaction and its synonyms and related conditions.
Table 1: Adverse drug reactions (ADRs) based on reports from clinical trials and identified during post-marketing surveillance (frequencies - where known - calculated based on pooled clinical trial data)
System Organ Class
Very common
(≥ 1/10)
Common
( ≥ 1/100 to < 1/10)
Uncommon
(≥ 1/1,000 to < 1/100)
Rare
( ≥ 1/10,000 to < 1/1,000)
Frequency not known
Blood and lymphatic system disorders
Lymphocyte count decreased (< 1500/mm3) e, White blood cell count decreased (< 3000/mm3) e, Absolute neutrophil count decreased (< 1500/mm3)e
Lymphadenopathy, Anaemia
Thrombocytopenia
Thrombotic microangiopathy d, including thrombotic thrombocytopenic purpura/ haemolytic uraemic syndromeb
Haemolytic anaemiaa, d
Immune system disorders
Anaphylactic reactions
Capillary leak syndrome in pre-existing monoclonal gammopathya
Endocrine disorders
Hypothyroidism
Hyperthyroidism, Thyroid disorders
Metabolism and nutrition disorders
Weight increased, Weight decreased
Blood triglycerides increased
Anorexiaa
Psychiatric disorders
Confusional state
Suicide attempt (see also section 4.4), Emotional lability
Depression, Anxiety
Nervous system disorders
Headache, Insomnia,
Convulsion
Dizziness
Cardiac disorders
Tachycardia
Cardiomyopathya
Palpitation
Vascular disorders
Hypertension
Vasodilatation
Respiratory, thoracic and mediastinal disorders
Dyspnoea
Bronchospasma
Pulmonary arterial hypertensionc
Gastrointestinal disorders
Abdominal pain
Pancreatitis
Nausea, Vomiting, Diarrhoea
Hepatobiliary disorders
Alanine aminotransferase increased (ALAT > 5 times baseline)e
Aspartate aminotransferase increased (ASAT > 5 times baseline)e, Blood bilirubin increased
Gamma-glutamyl-transferase increased, Hepatitis
Hepatic injury , Hepatic failurea
Skin and subcutaneous tissue disorders
Rash, Skin disorder
Urticaria, Pruritus, Alopecia
Skin discolouration
Musculoskeletal and connective tissue disorders
Myalgia, Hypertonia, Arthralgia
Drug-induced lupus erythematosus
Renal and urinary disorders
Urinary urgency
Nephrotic syndrome, Glomerulosclerosis (see section 4.4)a,b
Reproductive system and breast disorders
Menorrhagia, Impotence, Metrorrhagia
Menstrual disorder
General disorders and administration site conditions
Injection site reaction (various kindsf), Flu-like symptoms (complex g), Pain, Fever, Chills, Peripheral oedema, Asthenia
Injection site necrosis, Chest pain, Malaise
Sweating
a ADRs derived only during post-marketing
b Class label for interferon beta products (see section 4.4).
c Class label for interferon products, see below Pulmonary arterial hypertension.
d life-threatening and/or fatal cases have been reported.
e laboratory abnormality
f 'Injection site reaction (various kinds)' comprises all adverse events occurring at the injection site (except injection site necrosis), e.g. the following terms: injection site atrophy, injection site edema, injection site haemorrhage, injection site hypersensitivity, injection site infection, injection site inflammation, injection site mass, injection site pain and injection site reaction.
g Flu-like symptom complex' denotes flu syndrome and/or a combination of at least two Adverse Events from fever, chills, myalgia, malaise, sweating.
Pulmonary arterial hypertension
Cases of pulmonary arterial hypertension (PAH) have been reported with interferon beta products. Events were reported at various time points including up to several years after starting treatment with interferon beta.
Reporting of suspected adverse reactions
Reporting suspected adverse reactions after authorisation of the medicinal product is important. It allows continued monitoring of the benefit/risk balance of the medicinal product. Healthcare professionals are asked to report any suspected adverse reactions 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.
Interferon beta-1b has been given without serious adverse events compromising vital functions to adult cancer patients at individual doses as high as 5,500 microgram (176 million IU) intravenously three times a week.
Medicines sold in Romania with the same active substance: Cunoscut în România ca
Same active substance. The strength, the form and whether you need a prescription can differ. Always ask a pharmacist before you switch. Romanian medicines in the UK →
Medicines sold in Poland with the same active substance: W Polsce znany jako
Same active substance. The strength, the form and whether you need a prescription can differ. Always ask a pharmacist before you switch. Polish medicines in the UK →
Ask anything about Betaferon 250 microgram/ml, powder and solvent for solution for injection. The assistant answers only from this leaflet — if the leaflet does not cover it, it will say so. It does not give medical advice.
Answers come from the patient leaflet published on the electronic medicines compendium (emc). They are not medical advice. Ask a pharmacist or your GP if you are unsure. For urgent help call NHS 111, or 999 in an emergency.
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