Trastuzumab-dkst (By injection)

Ask your doctor or pharmacist before using any other medicine, including over-the-counter medicines, vitamins, and herbal products.

• Do not use an anthracycline medicine for up to 7 months after stopping treatment with medicines containing trastuzumab.

Injectable

• Your doctor will prescribe your dose and schedule. This medicine is given through a needle placed in a vein. This medicine must be given slowly, so the needle will have to remain in place for at least 30 to 90 minutes.
• You will receive this medicine while you are in a hospital or cancer treatment center. A nurse or other trained health professional will give you this medicine.
• Missed dose: This medicine needs to be given on a fixed schedule. If you miss a dose, call your doctor, home health caregiver, or treatment clinic for instructions.

Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088

Trastuzumab-dkst (tras-TOOZ-oo-mab - dkst)

Treats cancer, including breast, stomach, and esophageal cancer.

Call your doctor right away if you notice any of these side effects:

• Allergic reaction: Itching or hives, swelling in your face or hands, swelling or tingling in your mouth or throat, chest tightness, trouble breathing
• Chest pain, trouble breathing, fast, slow, or uneven heartbeat
• Fever, chills, cough, runny or stuffy nose, sore throat, body aches
• Lightheadedness, dizziness, or fainting, vomiting, headache
• Pain, redness, itching, burning, swelling, or a lump under your skin where the needle is placed
• Rapid weight gain, swelling in your hands, ankles, or feet
• Unusual bleeding, bruising, or weakness

If you notice these less serious side effects, talk with your doctor:

• Cough
• Diarrhea, nausea
• Muscle or joint pain

• It is not safe to take this medicine during pregnancy. It could harm an unborn baby. Tell your doctor right away if you become pregnant. Use an effective form of birth control to prevent pregnancy while you are receiving this medicine and for at least 7 months after your last dose.
• Tell your doctor if you are breastfeeding, or if you have heart disease, heart failure, heart rhythm problems, high blood pressure, or lung disease (including lung tumor) or breathing problems.
• This medicine may cause the following problems:
  • Heart problems
  • Infusion-related reactions
  • Lung or breathing problems
• Medicines used to treat cancer are very strong and can have many side effects. Before receiving this medicine, make sure you understand all the risks and benefits. It is important for you to work closely with your doctor during your treatment.
• This medicine may make you bleed, bruise, or get infections more easily. Take precautions to prevent illness and injury. Wash your hands often.
• Your doctor will do lab tests at regular visits to check on the effects of this medicine. Keep all appointments.