Teclistamab Injection (TECLISTAMAB - INJECTION)

Instructions

This medicine is given as an injection.

This medicine should be given by a trained health care provider.

You must be monitored by a health care professional for 2-3 days after each dose is given.

It is important that you keep taking each dose of this medicine on time even if you are feeling well.

If you miss a dose, contact your doctor for instructions.

Drug interactions can change how medicines work or increase risk for side effects. Tell your health care providers about all medicines taken. Include prescription and over-the-counter medicines, vitamins, and herbal medicines. Speak with your doctor or pharmacist before starting or stopping any medicine.

Your doctor may prescribe other medications to reduce side effects. Follow instructions carefully.

Learn how to check blood pressure at home.

Keep all appointments for medical exams and tests while on this medicine.

Cautions

Tell your doctor and pharmacist if you ever had an allergic reaction to a medicine.

This medicine may cause dizziness or fainting. Do not stand or sit up quickly.

Your ability to stay alert or to react quickly may be impaired by this medicine. Do not drive or operate machinery until you know how this medicine will affect you.

If possible, avoid using with alcohol, marijuana, or other medicines that can cause dizziness or drowsiness. These include allergy/cold products, muscle relaxers, sleep aids, and pain relievers.

This medicine may reduce your body's ability to fight infections. Avoid contact with people with colds, flu or other infections. Contact your doctor if you develop fever, cough, sore throat, or chills.

Speak with your health care provider before receiving any vaccinations.

Do not breastfeed while on this medicine. You may safely start breastfeeding 5 months after stopping treatment.

This medicine can hurt a new baby in the womb. If you become pregnant while on this medicine, tell your doctor immediately. Your doctor may switch you to a different medicine.

Women of childbearing age should have a negative pregnancy test before starting this medicine.

Women must use reliable forms of birth control while using this medicine and for 5 months after stopping to prevent pregnancy.

Some patients have serious side effects from this medicine. Ask your pharmacist to show you the information from the Food and Drug Administration (FDA) and discuss it with you.

Side Effects

The following is a list of some common side effects from this medicine. Please speak with your doctor about what you should do if you experience these or other side effects.

• decreased appetite
• constipation or diarrhea
• lack of energy and tiredness
• pain, redness, swelling near injection
• joint or muscle pain
• nausea and vomiting

Call your doctor or get medical help right away if you notice any of these more serious side effects:

• bleeding or bruising
• confusion
• cough that does not go away
• difficulty reading or writing
• dizziness
• fever or chills
• numbness or tingling in hands and feet
• headaches
• hearing loss
• fast or irregular heart beats
• signs of liver damage (such as yellowing of eye or skin, dark urine, or unusual tiredness)
• muscle aches, spasms or abnormal movements
• muscle trembling or weakness
• shakiness
• shortness of breath
• sore throat
• difficulty speaking
• unsteadiness while walking
• blurring or changes of vision

A few people may have an allergic reaction to this medicine. Symptoms can include difficulty breathing, skin rash, itching, swelling, or severe dizziness. If you notice any of these symptoms, seek medical help quickly.