Patient leaflet - Rixathon 100 mg concentrate for solution for infusion
1 What Rixathon is and what it is used for
What Rixathon is
Rixathon contains the active substance “rituximab”. This is a type of protein called a “monoclonal antibody”. It sticks to the surface of a type of white blood cell called “B-Lymphocyte”. When rituximab sticks to the surface of this cell, the cell dies.
What Rixathon is used for
Rixathon may be used for the treatment of several different conditions in adults and children. Your doctor may prescribe Rixathon for the treatment of:
- a) Non-Hodgkin’s Lymphoma
This is a disease of the lymph tissue (part of the immune system) that affects a type of white blood cell called B-Lymphocytes.
In adults Rixathon can be given alone or with other medicines called “chemotherapy”.
In adult patients where the treatment is working, Rixathon may be used as a maintenance treatment for 2 years after completing the initial treatment. In children and adolescents, rituximab is given in combination with “chemotherapy”.
- b) Chronic lymphocytic leukaemia
Chronic lymphocytic leukaemia (CLL) is the most common form of adult leukaemia. CLL affects a particular lymphocyte, the B cell, which originates from the bone marrow and develops in the lymph nodes. Patients with CLL have too many abnormal lymphocytes, which accumulate mainly in the bone marrow and blood. The proliferation of these abnormal B-lymphocytes is the cause of symptoms you may have. Rixathon in combination with chemotherapy destroys these cells which are gradually removed from the body by biological processes.
- c) Rheumatoid arthritis
Rixathon is used for the treatment of rheumatoid arthritis. Rheumatoid arthritis is a disease of the joints. B lymphocytes are involved in the cause of some of the symptoms you have. Rixathon is used to treat rheumatoid arthritis in people who have already tried some other medicines which have either stopped working, have not worked well enough or have caused side effects. Rixathon is usually taken together with another medicine called methotrexate.
Rixathon slows down the damage to your joints caused by rheumatoid arthritis and improves your ability to do normal daily activities.
The best responses to Rixathon are seen in those who have a positive blood test to rheumatoid factor (RF) and/or anti- Cyclic Citrullinated Peptide (anti-CCP). Both tests are commonly positive in rheumatoid arthritis and aid in confirming the diagnosis.
- d) Granulomatosis with polyangiitis or microscopic polyangiitis
Rixathon is used for the treatment of adults and children 2 years of age and older with granulomatosis with polyangiitis (formerly called Wegener’s granulomatosis) or microscopic polyangiitis, taken in combination with corticosteroids.
Granulomatosis with polyangiitis and microscopic polyangiitis are two forms of inflammation of the blood vessels which mainly affects the lungs and kidneys, but may affect other organs as well. B lymphocytes are involved in the cause of these conditions.
- e) Pemphigus vulgaris
Rixathon is used for the treatment of patients with moderate to severe pemphigus vulgaris.
Pemphigus vulgaris is an autoimmune condition that causes painful blisters on the skin and lining of the mouth, nose, throat and genitals.
2 What you need to know before you are
given Rixathon
Do not have Rixathon if
you are allergic to rituximab, other proteins which are like rituximab, or any of the other ingredients of this medicine (listed in section 6).
- you have a severe active infection at the moment
- you have a weak immune system.
- you have severe heart failure or severe uncontrolled heart disease and have rheumatoid arthritis, granulomatosis with polyangiitis, microscopic polyangiitis or pemphigus vulgaris.
Do not have Rixathon if any of the above apply to you. If you are not sure, talk to your doctor, pharmacist or nurse before you are given Rixathon.
Warnings and precautions
Talk to your doctor, pharmacist or nurse before you are given Rixathon if:
- you have ever had or might now have a hepatitis infection. This is because in a few cases, Rixathon could cause hepatitis B to become active again, which can be fatal in very rare cases. Patients who have ever had hepatitis B infection will be carefully checked by their doctor for signs of this infection.
- you have ever had heart problems (such as angina, palpitations or heart failure) or breathing problems.
If any of the above apply to you (or you are not sure), talk to your doctor, pharmacist or nurse before you are given Rixathon. Your doctor may need to take special care of you during your treatment with Rixathon.
If you have rheumatoid arthritis, granulomatosis with polyangiitis, microscopic polyangiitis or pemphigus vulgaris also tell your doctor
- if you think you may have an infection, even a mild one like a cold. The cells that are affected by Rixathon help to fight infection and you should wait until the infection has passed before you are given Rixathon. Also please tell your doctor if you had a lot of infections in the past or suffer from severe infections.
- if you think you may need any vaccinations in the near future, including vaccinations needed to travel to other countries. Some vaccines should not be given at the same time as Rixathon or in the months after you receive Rixathon. Your doctor will check if you should have any vaccines before you receive Rixathon.
Children and adolescents
Non-Hodgkin’s lymphoma
Rituximab can be used for the treatment of children and adolescents, 6 months of age and older, with non-Hodgkin’s lymphoma, specifically CD20 positive diffuse large B-cell lymphoma (DLBCL), Burkitt lymphoma (BL)/Burkitt leukaemia (mature B-cell acute leukaemia) (BAL) or Burkitt-like lymphoma (BLL).
Granulomatosis with polyangiitis or microscopic polyangiitis
Rituximab can be used for treatment of children and adolescents, 2 years of age and older, with granulomatosis with polyangiitis (formerly called Wegener’s granulomatosis) or microscopic polyangiitis. There is not much information about the use of rituximab in children and adolescents with other diseases.
Talk to your doctor, pharmacist or nurse before you are given this medicine if you, or your child, are under 18 years of age.
Other medicines and Rixathon
Tell your doctor, pharmacist or nurse if you are taking, have recently taken or might take any other medicines. This includes medicines obtained without a prescription and herbal medicines. This is because Rixathon can affect the way some other medicines work. Also some other medicines can affect the way Rixathon works.
In particular, tell your doctor:
- if you are taking medicines for high blood pressure. You may be asked not to take these other medicines 12 hours before you are given Rixathon. This is because some people have a fall in their blood pressure while they are being given Rixathon.
if you have ever taken medicines which affect your immune system – such as chemotherapy or immune-suppressive medicines.
If any of the above apply to you (or you are not sure), talk to your doctor, pharmacist or nurse before you are given Rixathon.
Pregnancy and breast-feeding
You must tell your doctor or nurse if you are pregnant, think that you might be pregnant or are planning to become pregnant. This is because Rixathon can cross the placenta and may affect your baby.
If you can get pregnant, you and your partner must use an effective method of contraception while using Rixathon. You must also do this for 12 months after your last treatment with Rixathon. Rixathon passes into breast milk in very small amounts. As the long-term effects on breastfed infants are not known, for precautionary reasons, breast-feeding is not recommended during treatment with Rixathon and for 6 months after the treatment.
Driving and using machines
It is not known whether rituximab has an effect on you being able to drive or use any tools or machines.
Rixathon contains sodium
This medicine contains 52.6 mg sodium (main component of cooking/table salt) in each 10 mL vial and 263.2 mg in each 50 mL vial.
This is equivalent to 2.6% (for 10 ml vial) and 13.2% (for 50 ml vial) of the recommended maximum daily dietary intake of sodium for an adult.
Rixathon contains polysorbate
This medicinal product contains 7.0 mg of polysorbate 80 (E 433) per 10 mL vial and 35.0 mg of polysorbate 80 (E 433) per 50 mL vial, which is equivalent to 0.7 mg/mL.
Polysorbates may cause allergic reactions. Tell your doctor if you have or your child has any known allergies.
3 How Rixathon is given
How it is given
Rixathon will be given to you by a doctor or nurse who is experienced in the use of this treatment. They will watch you closely while you are being given this medicine. This is in case you get any side effects. You will always be given Rixathon as a drip (intra-venous infusion).
Medicines given before each Rixathon administration
Before you are given Rixathon you will be given other medicines (premedication) to prevent or reduce possible side effects.
How much and how often you will receive your treatment
- a)
If you are being treated for non-Hodgkin’s lymphoma
- If you are having Rixathon alone
Rixathon will be given to you once a week for
4 weeks. Repeated treatment courses with Rixathon are possible.
- If you are having Rixathon with chemotherapy
Rixathon will be given to you on the same day as
your chemotherapy. This is usually given every 3 weeks up to 8 times.
If you respond well to treatment, you may be
given Rixathon as a maintenance treatment every 2 or 3 months for two years. Your doctor may change this, depending on how you respond to the medicine.
If you are less than 18 years of age, you will be
given Rixathon with chemotherapy. You will receive Rixathon up to 6 times over a 3.5 – 5.5 month period.
- b) If you are being treated for chronic lymphocytic leukaemia
When you are treated with Rixathon in combination with chemotherapy, you will receive Rixathon infusions on Day 0 cycle 1 then Day 1 of each cycle for 6 cycles in total. Each cycle has a duration of 28 days. The chemotherapy should be given after the Rixathon infusion. Your doctor will decide if you should receive concomitant supportive therapy.
- c) If you are being treated for rheumatoid arthritis
Each course of treatment is made up of two separate infusions which are given 2 weeks apart. Repeated courses of treatment with Rixathon are possible. Depending on the signs and symptoms of your disease, your doctor will decide when you should receive more Rixathon. This may be months from now.
- d) If you are being treated for granulomatosis with polyangiitis or microscopic polyangiitis
Treatment with Rixathon uses four separate infusions given at weekly intervals. Corticosteroids will usually be given by injection before the start of Rixathon treatment. Corticosteroids given by mouth may be started at any time by your doctor to treat your condition.
If you are 18 years of age or older and respond well to treatment, you may be given Rixathon as a maintenance treatment. This will be administered as 2 separate infusions which are given 2 weeks apart, followed by 1 infusion every 6 months for at least 2 years. Your doctor may decide to treat you longer with Rixathon (up to 5 years), depending on how you respond to the medicine.
- e) If you are being treated for pemphigus vulgaris
Each course of treatment is made up of two separate infusions which are given 2 weeks apart. If you respond well to treatment, you may be given Rixathon as a maintenance treatment. This will be administered 1 year and 18 months after the initial treatment and then every 6 months as needed or your doctor may change this, depending on how you respond to the medicine.
If you have any further questions on the use of this medicine, ask your doctor, pharmacist or nurse.
4 Possible side effects
Like all medicines, this medicine can cause side effects, although not everybody gets them.
Most side effects are mild to moderate but some may be serious and require treatment. Rarely, some of these reactions have been fatal.
Infusion reactions
During or within the first 24 hours of the infusion you may develop fever, chills and shivering. Less frequently, some patients may experience pain at the infusion site, blisters, itching, sickness (nausea), tiredness, headache, breathing difficulties, blood pressure raised, wheezing, throat discomfort, tongue or throat swelling, itchy or runny nose, vomiting, flushing or palpitations, heart attack or low number of platelets. If you have heart disease or angina, these reactions might get worse. Tell the person giving you the infusion immediately if you or your child develops any of these symptoms, as the infusion may need to be slowed down or stopped. You may require additional treatment such as an antihistamine or paracetamol. When these symptoms go away, or improve, the infusion can be continued. These reactions are less likely to happen after the second infusion. Your doctor may decide to stop your Rixathon treatment if these reactions are serious.
Infections
Tell your doctor immediately if you or your child gets signs of an infection including:
- fever, cough, sore throat, burning pain when passing urine or feeling weak or generally unwell
- memory loss, trouble thinking, difficulty walking or sight loss –these may be due to a very rare, serious brain infection, which has been fatal (Progressive Multifocal Leukoencephalopathy or PML).
- fever, headache and stiff neck, incoordination (ataxia), personality change, hallucinations, altered consciousness, seizures or coma – these may be due to a serious brain infection (enteroviral meningoencephalitis), which can be fatal.
You might get infections more easily during your treatment with Rixathon.
These are often colds, but there have been cases of pneumonia, urinary infections and serious viral infections. These are listed below under “Other side effects”.
If you are being treated for rheumatoid arthritis, granulomatosis with polyangiitis, microscopic polyangiitis or pemphigus vulgaris, you will also find this information in the Patient Alert Card you have been given by your doctor. It is important that you keep this Alert Card and show it to your partner or caregiver.
Skin reactions
Very rarely, severe blistering skin conditions that can be life-threatening may occur. Redness, often associated with blisters, may appear on the skin or on mucous membranes, such as inside the mouth, the genital areas or the eyelids, and fever may be present. Tell your doctor immediately if you experience any of these symptoms.
Other side effects include:
- a) If you or your child are being treated for non-Hodgkin’s lymphoma or chronic lymphocytic leukaemia
Very common side effects (may affect more than 1 in 10 people):
- bacterial or viral infections, bronchitis
- low number of white blood cells, with or without fever or blood cells called “platelets”
- feeling sick (nausea)
- bald spots on the scalp, chills, headache
- lower immunity – because of lower levels of anti-bodies called “immunoglobulins” (IgG) in the blood which help protect against infection
Common side effects (may affect up to 1 in 10 people):
- infections of the blood (sepsis), pneumonia, shingles, cold, bronchial tube infections, fungal infections, infections of unknown origin, sinus inflammation, hepatitis B
- low number of red blood cells (anaemia), low number of all blood cells
- allergic reactions (hypersensitivity)
- high blood sugar level, weight loss, swelling in the face and body, high levels of the enzyme “LDH” in the blood, low calcium levels in the blood
- unusual feelings of the skin – such as numbness, tingling, pricking, burning, a creeping skin feeling, reduced sense of touch
feeling restless, problems falling asleep
- becoming very red in the face and other areas of the skin as a consequence of dilation of the blood vessels
- feeling dizzy or anxious
- producing more tears, tear duct problems, inflamed eye (conjunctivitis)
- ringing sound in the ears, ear pain
- heart problems – such as heart attack, uneven or fast heart rate
- high or low blood pressure (low blood pressure especially when standing upright)
- tightening of the muscles in the airways which causes wheezing (bronchospasm), inflammation, irritation in the lungs, throat or sinuses, being short of breath, runny nose
- being sick (vomiting), diarrhoea, pain in the stomach, irritation or ulcers in the throat and mouth, problems swallowing, constipation, indigestion
- eating disorders, not eating enough, leading to weight loss
- hives, increased sweating, night sweats
- muscle problems – such as tight muscles, joint or muscle pain, back and neck pain
- tumour pain
- general discomfort or feeling uneasy or tired, shaking, signs of flu
- multiple-organ failure.
Uncommon side effects (may affect up to 1 in 100 people):
- blood clotting problems, decrease of red blood cell production and increase of red blood cell destruction (aplastic haemolytic anaemia), swollen or enlarged lymph nodes
- low mood and loss of interest or enjoyment in doing things, feeling nervous
- taste problems – such as changes in the way things taste
- heart problems – such as reduced heart rate or chest pain (angina)
- asthma, too little oxygen reaching the body organs
- swelling of the stomach.
Very rare side effects (may affect up to 1 in 10,000 people):
- short term increase in the amount of some types of anti-bodies in the blood (called Immunoglobulins – IgM), chemical disturbances in the blood caused by break-down of dying cancer cells
- nerve damage in arms and legs, paralysed face
- heart failure
- inflammation of blood vessels including those leading to skin symptoms
- respiratory failure
- damage to the intestinal wall (perforation)
- severe skin problems causing blisters that can be life-threatening. Redness, often associated with blisters, may appear on the skin or on mucous membranes, such as inside the mouth, the genital areas or the eyelids, and fever may be present.
- kidney failure
- severe vision loss
Not known (it is not known how often these side effects happen):
- a reduction in white blood cells which does not happen straight away
- reduced platelets number just after the infusion – this can be reversed, but can be fatal in rare cases
- hearing loss, loss of other senses
- brain and meningeal infection/inflammation (enteroviral meningoencephalitis)
Children and adolescents with non-Hodgkin’s lymphoma:
In general, side effects in children and adolescents with non-Hodgkin’s lymphoma were similar to those in adults with non-Hodgkin’s lymphoma or chronic lymphocytic leukaemia. The most common side effects seen were fever associated with low levels of a type of white blood cell (neutrophil), inflammation or sores in the lining of the mouth, and allergic reactions (hypersensitivity).
- b) If you are being treated for rheumatoid arthritis
Very common side effects (may affect more than 1 in 10 people):
- Infections such as pneumonia (bacterial)
- Pain on passing water (urinary tract infection)
- Allergic reactions that are most likely to occur during an infusion, but can occur up-to 24-hours after infusion
- Changes in blood pressure, nausea, rash, fever, feeling itchy, runny or blocked nose and sneezing, shaking, rapid heartbeat, and tiredness
- Headache
- Changes in laboratory tests carried out by your doctor. These include a decrease in the amount of some specific proteins in the blood (immunoglobulins) which help protect against infection.
Common side effects (may affect up to 1 in 10 people):
- Infections such as bronchial tube inflammation (bronchitis)
- A feeling of fullness or a throbbing pain behind the nose, cheeks and eyes (sinusitis), pain in the abdomen, vomiting and diarrhoea, breathing problems
- Fungal foot infection (athlete’s foot)
High cholesterol levels in the blood
- Abnormal sensations of the skin, such as numbness, tingling, pricking or burning, sciatica, migraine, dizziness
- Loss of hair
- Anxiety, depression
- Indigestion, diarrhoea, acid reflux, irritation and /or ulceration of the throat and the mouth
- Pain in the tummy, back, muscles and/or joints
Uncommon side effects (may affect up to 1 in 100 people):
- Excess fluid retention in the face and body
- Inflammation, irritation and / or tightness of the lungs, and throat, coughing
- Skin reactions including hives, itching and rash
- Allergic reactions including wheezing or shortness of breath, swelling of the face and tongue, collapse
Very rare side effects (may affect up to 1 in 10,000 people):
- A complex of symptoms occurring within a few weeks of an infusion of rituximab including allergic like reactions such as rash, itching, joint pain, swollen lymph glands and fever
- Severe blistering skin conditions that can be life-threatening. Redness, often associated with blisters, may appear on the skin or on mucous membranes, such as inside the mouth, the genital areas or the eyelids, and fever may be present.
Not known (frequency cannot be estimated from the available data):
- Serious viral infection
- Brain and meningeal infection/inflammation (enteroviral meningoencephalitis)
Other rarely-reported side-effects due to rituximab include a decreased number of white cells in the blood (neutrophils) that help to fight against infection. Some infections may be severe (please see information on Infections within this section).
- c) If you or your child are being treated for granulomatosis with polyangiitis or microscopic polyangiitis
Very common side effects (may affect more than 1 in 10 people):
- infections, such as chest infections, urinary tract infections (pain on passing water), colds and herpes infections
- allergic reactions that are most likely to occur during an infusion, but can occur up-to 24-hours after infusion
- diarrhoea
- coughing or shortness of breath
- nose bleeds
- raised blood pressure
- painful joints or back
- muscle twitches or shakiness
- feeling dizzy
- tremors (shakiness, often in the hands)
- difficulty sleeping (insomnia)
- swelling of the hands or ankles
Common side effects (may affect up to 1 in 10 people):
- indigestion
- constipation
- skin rashes, including acne or spots
- flushing or redness of the skin
- fever
- blocked or runny nose
- tight or painful muscles
- pain in the muscles or in the hands or feet
- low number of red blood cells (anaemia)
- low numbers of platelets in the blood
- an increase in the amount of potassium in the blood
- changes in the rhythm of the heart, or the heart beating faster than normal
Very rare side effects (may affect up to 1 in 10,000 people):
- severe blistering skin conditions that can be life-threatening. Redness, often associated with blisters, may appear on the skin or on mucous membranes, such as inside the mouth, the genital areas or the eyelids, and fever may be present.
- recurrence of a previous Hepatitis B infection
Not known (frequency cannot be estimated from the available data):
- serious viral infection
- Brain and meningeal infection/inflammation (enteroviral meningoencephalitis)
Children and adolescents with granulomatosis with polyangiitis or microscopic polyangiitis
In general, side effects in children and adolescents with granulomatosis with polyangiitis or microscopic polyangiitis were of a similar type to those in adults with granulomatosis with polyangiitis or microscopic polyangiitis. Most common side effects seen were infections, allergic reactions and feeling sick (nausea).
- d) If you are being treated for pemphigus vulgaris
Very common side effects (may affect more than 1 in 10 people):
- allergic reactions that are most likely to occur during an infusion, but can occur up to 24 hours after infusion
- headache
- infections such as chest infections
- long lasting depression
loss of hair
Common side effects (may affect up to 1 in 10 people): infections such as common cold, herpes infections, eye infection, oral thrush and urinary tract infections (pain on passing urine)
- mood disorders such as irritability and depression
- skin disorders such as itching, hives, and benign lumps
- feeling tired or dizzy
- fever
- painful joints or back
- pain in the tummy
- pain in the muscles
- heart beating faster than normal
Not known (frequency cannot be estimated from the available data):
- Serious viral infection
- Brain and meningeal infection/inflammation (enteroviral meningoencephalitis)
Rixathon may also cause changes in laboratory tests carried out by your doctor.
If you are having Rixathon with other medicines, some of the side effects you may get may be due to the other medicines.
Reporting of side effects
If you get any side effects, talk to your doctor, pharmacist or nurse. This includes any side effects not listed in this leaflet. You can also report side effects directly (see details below). By reporting side effects you can help provide more information on the safety of this medicine.
Yellow Card Scheme
Website: www.mhra.gov.uk/yellowcard or search for MHRA Yellow Card in the Google Play or Apple App Store.
5 How to store Rixathon
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 carton after EXP. The expiry date refers to the last day of that month.
Store in a refrigerator (2°C – 8°C).
Do not freeze. Keep the vial in the outer carton in order to protect from light.
This medicine can also be stored in the original carton outside of refrigerated storage up to a maximum of 30°C for a single period of up to 7 days, but not beyond the original expiry date. In this situation, do not return to the refrigerated storage again. Write the new expiry date on the carton including day/month/ year. Discard this medicine if not used by the new expiry date or the expiry date printed on the carton, whichever is earlier.
Do not throw away any medicines via wastewater or household waste. Ask your pharmacist how to throw away medicines you no longer use. These measures will help protect the environment.
6 Contents of the pack and other
information
What Rixathon contains
The active substance in Rixathon is called rituximab. The 10 mL vial contains 100 mg of rituximab (10 mg/mL).
The 50 mL vial contains 500 mg of rituximab (10 mg/mL).
- The other ingredients are sodium citrate, polysorbate 80 (E 433), sodium chloride, sodium hydroxide, hydrochloric acid and water for injections. See section 2 “Rixathon contains sodium”.
What Rixathon looks like and contents of the pack
Rixathon is a clear, colourless to slightly yellowish solution, supplied as a concentrate for solution for infusion.
10 mL vial - Pack of 2 or 3 vials.
50 mL vial - Pack of 1 or 2 vials.
Marketing Authorisation Holder
Sandoz GmbH
Biochemiestr. 10
6250 Kundl
Austria
Manufacturer
Sandoz GmbH Schaftenau
Biochemiestr. 10
6336 Langkampfen
Austria
Lek Pharmaceuticals d.d. Ljubljana
Verovškova 57
1526 Ljubljana
Slovenia
This leaflet was last revised in 05/2025. SZ00000LT000
Rixathon® 100 mg
concentrate for solution
for infusion
Rixathon® 500 mg
concentrate for solution
for infusion
Rixathon® 100 mg
concentrate for solution
for infusion
Rixathon® 500 mg
concentrate for solution
for infusion
| V033 – UK Originator Alignment | Tech | nical Colours: | ||||
| Legend: | ||||||
| 28/05/2025 | Cutting: | |||||
| 715 x 490 mm | ||||||
| Technical data: | ||||||
| SKUs: | 0000000 | |||||
| SZ codes: | SZ00000LT000 | |||||
| 0000000 | Col | ours: | ||||
| 0000000 | ||||||