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Fulvestrant (Injection)

Fulvestrant (ful-VES-trant)

Treats breast cancer in women who have gone through menopause.

Brand Name(s):

Faslodex

There may be other brand names for this medicine.

When This Medicine Should Not Be Used:

You should not receive this medicine if you have had an allergic reaction to fulvestrant, or if you are pregnant.

How to Use This Medicine:

Injectable

  • 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.
  • 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. It may also be given by a home health caregiver.
  • Your doctor will prescribe your exact dose and tell you how often it should be given. This medicine is given as a shot into one of your muscles.
  • The medicine is usually given one time each month.
  • You may be taught how to give your medicine at home. Make sure you understand all instructions before giving yourself an injection. Do not use more medicine or use it more often than your doctor tells you to.
  • Never share your medicine with anyone.

If a dose is missed:

  • 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.

How to Store and Dispose of This Medicine:

  • If you store this medicine at home, keep it in the refrigerator. Do not freeze.
  • Use a new needle and syringe each time you inject your medicine. Throw away used needles in a hard, closed container that the needles cannot poke through. Keep this container away from children and pets. Follow any special instructions about how to throw away empty medicine bottles, tubes, or bags.
  • Keep all medicine away from children.

Drugs and Foods to Avoid:

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

  • Make sure your doctor knows if you are also using a blood thinner such as warfarin (Coumadin®).

Warnings While Using This Medicine:

  • Although it is unlikely that a postmenopausal woman might become pregnant, you should know that using this medicine while you are pregnant could harm the unborn baby. If you think you have become pregnant while using the medicine, tell your doctor right away.
  • Make sure your doctor knows if you are breastfeeding, or if you have a bleeding disorder or any unusual bleeding or bruising.
  • This medicine may cause you to have vaginal bleeding, especially when you first start using it. Tell your doctor if you have any vaginal bleeding.
  • Cancer medicines can cause nausea and/or vomiting in most people, sometimes even after receiving medicines to prevent it. Ask your doctor or nurse about other ways to control these side effects.

Possible Side Effects While Using This Medicine:

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

  • Chest pain or trouble breathing
  • Fever, chills, cough, sore throat, body aches
  • Warmth or redness in the face, neck, arms, or upper chest

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

  • Headache or back pain
  • Nausea, vomiting, constipation, diarrhea, or stomach pain
  • Pain or swelling where the shot is given
  • Tiredness or weakness

If you notice other side effects that you think are caused by this medicine, tell your doctor

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


Last Updated: 11/4/2014
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