PRECAUTIONS: Before using trastuzumab, 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 (such as benzyl alcohol), 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: previous cancer treatments (including radiation therapy to the chest), current infection, virus infection with returning symptoms (e.g., herpes, shingles), heart disease, high blood pressure, lung problems, previous severe reaction to monoclonal antibody treatment.Trastuzumab can make you more likely to get infections or may worsen any current infections. Therefore, wash your hands well to prevent the spread of infection. 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 consent of your doctor. Avoid contact with people who have recently received live vaccines (such as flu vaccine inhaled through the nose).To lower your risk of getting cut, bruised, or injured, use caution with sharp objects like razors and nail cutters, and avoid activities such as contact sports.This drug may make you dizzy. Do not drive, use machinery, or do any activity that requires alertness until you are sure you can perform such activities safely. Limit alcoholic beverages.Before having surgery, tell your doctor or dentist about all the products you use (including prescription drugs, nonprescription drugs, and herbal products).Caution is advised when using this drug in the elderly because they may be at greater risk for heart problems (e.g., heart failure).This medication is not recommended for use during pregnancy. It may harm an unborn baby. Women of childbearing age should discuss the use of reliable forms of birth control with their doctors while using this medication and for 6 month after treatment has stopped. If you become pregnant or think you may be pregnant, tell your doctor immediately.It is not known whether this drug passes into breast milk. Because of the possible risk to the infant, breast-feeding is not recommended while using this drug or for 6 months after the last dose.
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.
Need help identifying pills and medications?
Use the pill identifier tool on RxList.