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(rituximab) Injection for IV Use
FATAL INFUSION REACTIONS, SEVERE MUCOCUTANEOUS REACTIONS, HEPATITIS B VIRUS REACTIVATION and PROGRESSIVE MULTIFOCAL LEUKOENCEPHALOPATHY
Rituxan administration can result in serious, including fatal infusion reactions. Deaths within 24 hours of Rituxan infusion have occurred. Approximately 80% of fatal infusion reactions occurred in association with the first infusion. Monitor patients closely. Discontinue Rituxan infusion for severe reactions and provide medical treatment for Grade 3 or 4 infusion reactions [see WARNINGS AND PRECAUTIONS, ADVERSE REACTIONS].
Severe Mucocutaneous Reactions
Hepatitis B Virus (HBV) Reactivation
HBV reactivation can occur in patients treated with Rituxan, in some cases resulting in fulminant hepatitis , hepatic failure, and death. Screen all patients for HBV infection before treatment initiation, and monitor patients during and after treatment with Rituxan. Discontinue Rituxan and concomitant medications in the event of HBV reactivation [see WARNINGS AND PRECAUTIONS, ADVERSE REACTIONS].
Rituxan® (rituximab) is a genetically engineered chimeric murine/human monoclonal IgG1 kappa antibody directed against the CD20 antigen. Rituximab has an approximate molecular weight of 145 kD. Rituximab has a binding affinity for the CD20 antigen of approximately 8.0 nM.
Rituximab is produced by mammalian cell (Chinese Hamster Ovary) suspension culture in a nutrient medium containing the antibiotic gentamicin. Gentamicin is not detectable in the final product. Rituxan is a sterile, clear, colorless, preservative-free liquid concentrate for intravenous administration. Rituxan is supplied at a concentration of 10 mg/mL in either 100 mg/10 mL or 500 mg/50 mL single-use vials. The product is formulated in polysorbate 80 (0.7 mg/mL), sodium chloride (9 mg/mL), sodium citrate dihydrate (7.35 mg/mL), and Water for Injection. The pH is 6.5.
What are the possible side effects of rituximab (Rituxan)?
Get emergency medical help if you have any of these signs of an allergic reaction: hives; chest tightness, trouble breathing; swelling of your face, lips, tongue, or throat.
Some people receiving a rituximab injection have had a reaction to the infusion (within 24 hours after the medicine is injected into the vein). Tell your caregiver right away if you feel dizzy, weak, light-headed, short of breath, or if you have chest pain, wheezing, sudden cough, or pounding heartbeats or fluttering in your chest.
Rituximab increases the risk of a serious viral infection of the...
What are the precautions when taking rituximab (Rituxan)?
Before using rituximab, tell your doctor or pharmacist if you are allergic to it; or to other mouse protein medications; or if you have any other allergies. This product may contain inactive ingredients, which can cause allergic reactions or other problems. Talk to your pharmacist for more details.
Before using this medication, tell your doctor or pharmacist your medical history, especially of: blood disorders (e.g., thrombocytopenia), heart problems (e.g., irregular heartbeat, angina), current or returning infections, lung problems (e.g., pulmonary infiltrates), previous severe reaction to monoclonal antibody treatment, virus infection (e.g., chickenpox, hepatitis B or C, herpes, JC virus).
This drug may make you dizzy. Do not drive, use machinery, or do any activity that...
Last reviewed on RxList: 9/14/2016
This monograph has been modified to include the generic and brand name in many instances.
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