Common side effects are nausea, vomiting, headache, dizziness, joint/muscle pain, weakness, or flushing may occur. If any of these effects worsen or stay for long time, consult your doctor immediately. People using this medication may face serious side effects. However, as your doctor has prescribed this drug because he or she has judged that the benefit to you is greater than the risk of side effects. Careful monitoring by your doctor may decrease your side effects and issues. Inform your doctor immediately if you have any serious side effects, including: swelling hands/ankles/feet, increased thirst/urination, numbness/tingling of arms/legs.
Before using rituximab, consult your doctor if you are allergic to it; or to mouse protein; or if you have any other allergies. This product may contain inactive ingredients, which can cause allergic reactions or create other problems. Before using this medication, inform your doctor about your medical history, especially of: lung disease, heart problems (such as irregular heartbeat, previous heart attack), bleeding/blood disorders, current/recent infections. This drug may make you sleepy, dizzy. If you consume Alcohol or marijuana (cannabis), that can make you more dizzy. Do not drive, use machinery, or do anything that needs alertness until you can do it safely as this medicine may impair your reflexes. Consult your doctor if you are using marijuana (cannabis). Before having surgery, inform your doctor or dentist about all the products you use (including prescription drugs, nonprescription drugs, and herbal products). Rituximab can make you more likely to get infections or may worsen any current infections. Avoid contact with people who have infections that may spread to others (such as chickenpox, measles, flu). Consult your doctor if you have been exposed to an infection or for more details. Do not have immunizations/vaccinations without the proper consent of your doctor. Avoid contact with people who have recently received live vaccines (such as flu vaccine inhaled through the nose). To lower the chance of getting cut, bruised, or injured, use caution with sharp objects like razors and nail cutters and avoid activities such as contact sports. Older adults may be at greater risk for heart problems (such as irregular heartbeat) or lung problems while using this drug. During pregnancy, this medication should be used only when utmost needed. It may harm the fetus so ask about reliable forms of birth control while using this medication and for 1 year after stopping treatment, If you become pregnant, consult your doctor immediately about the risks and benefits of this medication. It is unknown if this drug passes into breast milk. Because of the possible risk to the infant, breast-feeding while using this drug and for at least 6 months after treatment is not recommended. Consult your doctor before breast-feeding.
Do not flush medications down the toilet or pour them into a drain unless instructed to do so. Properly discard this product when it is expired or no longer needed. Consult your pharmacist or local waste disposal company.
Drug interactions may change how your medications work or increase your risk for serious side effects. This document does not contain all possible drug interactions. Keep a list of all the products you use (including prescription/nonprescription drugs and herbal products) and share it with your doctor and pharmacist. Do not start, stop, or change the dosage of any medicines without your doctor’s approval. Some products that may interact with this drug are: other drugs that weaken the immune system/increase the risk of infection (such as tofacitinib, natalizumab, fingolimod).
If someone has overdosed and has serious symptoms such as passing out or trouble breathing, call 911. Otherwise, call a poison control center right away. US residents can call their local poison control center at 1-800-222-1222. Canada residents can call a provincial poison control center.