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There has been no experience with overdosage in human clinical trials. Single doses of up to 500 mg/m² have been administered in clinical trials.
(rituximab) Injection for Intravenous Infusion
Read this Medication Guide before you start Rituxan and before each Rituxan infusion. There may be new information. This Medication Guide does not take the place of talking to your doctor about your medical condition or your treatment.
What is the most important information I should know about Rituxan?
Rituxan can cause serious side effects that can lead to death, including:
- Infusion reactions. Infusion reactions are
the most common side effect of Rituxan treatment. Serious infusion reactions
can happen during your infusion or within 24 hours after your infusion of
Rituxan. Your doctor should give you medicines before your infusion of Rituxan
to decrease your chance of having a severe infusion reaction.
Tell your doctor or get medical help right away if you get any of these symptoms during or after an infusion of Rituxan:
- Severe skin and mouth
your doctor or get medical help right away if you get any of these symptoms at
anytime during your treatment with Rituxan:
- painful sores or ulcers on your skin, lips or in your mouth
- peeling skin
- Hepatitis B virus (HBV) reactivation. Before Rituxan treatment, your doctor will do blood tests to check for HBV infection. If you have had hepatitis B or are a carrier of hepatitis B virus, receiving Rituxan could cause the virus to become an active infection again. Hepatitis B reactivation may cause serious liver problems including liver failure, and death. You should not receive Rituxan if you have active hepatitis B liver disease. Your doctor will monitor you for hepatitis B infection during and for several months after you stop receiving Rituxan.
- Progressive Multifocal
Leukoencephalopathy (PML). PML is a rare, serious brain infection caused by a virus.
People with weakened immune systems can get PML. Your chance of getting PML may
be higher if you are treated with Rituxan alone or with other medicines that
weaken your immune system. PML can result in death or severe disability. There
is no known treatment, prevention, or cure for PML.
Tell your doctor right away if you have any of the following symptoms or if anyone close to you notices these symptoms:
- confusion or problems thinking
- loss of balance
- change in the way you walk or talk
- decreased strength or weakness on one side of your body
- blurred vision or loss of vision
See “What are the possible side effects of Rituxan?” for more information about side effects.
What is Rituxan?
Rituxan is a prescription medicine used to treat:
- Non-Hodgkin's Lymphoma (NHL): alone or with other chemotherapy medicines.
- Chronic Lymphocytic Leukemia (CLL): with the chemotherapy medicines fludarabine and cyclophosphamide.
- Rheumatoid Arthritis (RA): with another prescription medicine called methotrexate, to reduce the signs and symptoms of moderate to severe active RA in adults, after treatment with at least one other medicine called a Tumor Necrosis Factor (TNF) antagonist has been used and did not work well enough.
- Granulomatosis with Polyangiitis (GPA) (Wegener's Granulomatosis) and Microscopic Polyangiitis (MPA): with glucocorticoids, to treat GPA and MPA.
People with serious infections should not receive Rituxan.
It is not known if Rituxan is safe or effective in children.
What should I tell my doctor before receiving Rituxan?
Before receiving Rituxan, tell your doctor if you:
- have had a severe infusion reaction to Rituxan in the past
- have a history of heart problems, irregular heart beat or chest pain
- have lung or kidney problems
- have an infection or weakened immune system.
- have or have had any severe infections including:
- have had a recent vaccination or are scheduled to receive vaccinations. You should not receive certain vaccines before or after you receive Rituxan. Tell your doctor if anyone in your household is scheduled to receive a vaccination. Some types of vaccines can spread to people with a weakened immune system, and cause serious problems.
- have taken Rituxan for GPA or MPA in the past.
- have any other medical conditions
- are pregnant or planning to
become pregnant. Rituxan may affect the white blood cell counts of your unborn
baby. It is not known if Rituxan may harm your unborn baby in other ways.
Women who are able to become pregnant should use effective birth control (contraception) while using Rituxan and for 12 months after you finish treatment. Talk to your doctor about effective birth control.
- are breast-feeding or plan to breast-feed. It is not known if Rituxan passes into your breast milk. You and your doctor should decide the best way to feed your baby if you receive Rituxan.
Tell your doctor about all the medicines you take, including prescription and nonprescription medicines, vitamins, and herbal supplements. Especially tell your doctor if you take or have taken:
- a Tumor Necrosis Factor (TNF) inhibitor medicine
- a Disease Modifying Anti-Rheumatic Drug (DMARD)
If you are not sure if your medicine is one listed above, ask your doctor or pharmacist.
Know the medicines you take. Keep a list of them to show to your doctor and pharmacist when you get a new medicine. Do not take any new medicine without talking with your doctor.
How will I receive Rituxan?
- Rituxan is given by infusion through a needle placed in a vein (intravenous infusion), in your arm. Talk to your doctor about how you will receive Rituxan.
- Your doctor may prescribe medicines before each infusion of Rituxan to reduce side effects of infusions such as fever and chills.
- Your doctor should do regular blood tests to check for side effects to Rituxan.
Before each Rituxan treatment, your doctor or nurse will ask you questions about your general health. Tell your doctor or nurse about any new symptoms.
What are the possible side effects of Rituxan?
Rituxan can cause serious and life-threatening side effects, including:
See “What is the most important information I should know about Rituxan?”
- Tumor Lysis Syndrome (TLS). TLS is caused by the fast
breakdown of cancer cells. TLS can cause you to have:
- kidney failure and the need for dialysis treatment
- abnormal heart rhythm
Your doctor may do blood tests to check you for TLS. Your doctor may give you medicine to help prevent TLS.
- Serious infections. Serious infections can
happen during and after treatment with Rituxan, and can lead to death. Rituxan
can lower the ability of your immune system to fight infections. Types of
serious infections that can happen with Rituxan include bacterial, fungal, and
viral infections. After receiving Rituxan, some patients have developed low
levels of certain antibodies in their blood for a long period of time (longer
than 11 months). Some of these patients with low antibody levels developed
infections. Call your doctor right away if you have any symptoms of infection:
- cold symptoms, such as runny nose or sore throat that do not go away
- flu symptoms, such as cough, tiredness, and body aches
- earache or headache
- pain during urination
- white patches in the mouth or throat
- cuts, scrapes or incisions that are red, warm, swollen or painful
- Heart problems. Rituxan may cause chest pain and irregular heart beats which may need treatment, or your doctor may decide to stop your treatment with Rituxan.
- Kidney problems, especially if you are receiving Rituxan for NHL. Your doctor should do blood tests to check how well your kidneys are working.
- Stomach and Serious bowel problems that can sometimes lead to death. Bowel problems, including blockage or tears in the bowel can happen if you receive Rituxan with chemotherapy medicines to treat non-Hodgkin's lymphoma. Tell your doctor right away if you have any stomach area pain during treatment with Rituxan.
- Low blood cell counts. Your doctor may do blood
tests during treatment with Rituxan to check your blood cell counts.
- White blood cells. White blood cells fight against bacterial infections. Low white blood cells can cause you to get infections, which may be serious. See “Increased risk of infections” above for a list of symptoms of infection.
- Red blood cells. Red blood cells carry oxygen to your body tissues and organs.
- Platelets. Platelets are blood cells that help your blood to clot.
Common side effects during Rituxan treatment include:
- infusion reactions (see “What is the most important information I should know about Rituxan?”)
- body aches
- low white blood cells
Other side effects with Rituxan include:
- aching joints during or within hours of receiving an infusion
- more frequent upper respiratory tract infection
Tell your doctor about any side effect that bothers you or that does not go away.
These are not all of the possible side effects with Rituxan. For more information, ask your doctor or pharmacist.
Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088.
General information about Rituxan
Medicines are sometimes prescribed for purposes other than those listed in a Medication Guide. This Medication Guide provides a summary of the most important information about Rituxan. If you would like more information, talk with your doctor. You can ask your doctor for information about Rituxan that is written for healthcare professionals.
For more information, go to www.Rituxan.com or call 1-877-474-8892.
What are the ingredients in Rituxan?
Active ingredient: rituximab
Inactive ingredients: sodium chloride, sodium citrate dihydrate, polysorbate 80, and water for injection.
This Medication Guide has been approved by the U.S. Food and Drug Administration.
Last reviewed on RxList: 10/21/2013
This monograph has been modified to include the generic and brand name in many instances.
Additional Rituxan Information
Rituxan - User Reviews
Rituxan User Reviews
Now you can gain knowledge and insight about a drug treatment with Patient Discussions.
Report Problems to the Food and Drug Administration
You are encouraged to report negative side effects of prescription drugs to the FDA. Visit the FDA MedWatch website or call 1-800-FDA-1088.
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