Generic Name: Fulvestrant (fool VES trant)
Brand Name: Faslodex
Medically reviewed on July 4, 2018
Uses of Fulvestrant:
- It is used to treat breast cancer.
What do I need to tell my doctor BEFORE I take Fulvestrant?
- If you have an allergy to fulvestrant or any other part of fulvestrant.
- If you are allergic to any drugs like this one, any other drugs, foods, or other substances. Tell your doctor about the allergy and what signs you had, like rash; hives; itching; shortness of breath; wheezing; cough; swelling of face, lips, tongue, or throat; or any other signs.
- If you are breast-feeding. Do not breast-feed while you take fulvestrant and for 12 months after your last dose.
This medicine may interact with other drugs or health problems.
Tell your doctor and pharmacist about all of your drugs (prescription or OTC, natural products, vitamins) and health problems. You must check to make sure that it is safe for you to take fulvestrant with all of your drugs and health problems. Do not start, stop, or change the dose of any drug without checking with your doctor.
What are some things I need to know or do while I take Fulvestrant?
- Tell all of your health care providers that you take fulvestrant. This includes your doctors, nurses, pharmacists, and dentists.
- Be sure to have regular breast exams and gynecology check-ups. Your doctor will tell you how often to have these. You will also need to do breast self-exams as your doctor has told you. Talk with your doctor.
- This medicine may affect certain lab tests. Tell all of your health care providers and lab workers that you take fulvestrant.
- This medicine may be used with other drugs to treat your health condition. If you are also taking other drugs, talk with your doctor about the risks and side effects that may happen.
- This medicine may affect fertility. Fertility problems may lead to not being able to get pregnant or father a child. Talk with the doctor.
- If you are able to get pregnant, a pregnancy test will be done within 1 week before you start fulvestrant. Talk with your doctor.
- This medicine may cause harm to the unborn baby if you take it while you are pregnant.
- Use birth control that you can trust to prevent pregnancy while taking fulvestrant and for up to 12 months after fulvestrant.
- If you get pregnant while taking fulvestrant or within 12 months after your last dose, call your doctor right away.
How is this medicine (Fulvestrant) best taken?
Use fulvestrant as ordered by your doctor. Read all information given to you. Follow all instructions closely.
- It is given as a shot into a muscle.
What do I do if I miss a dose?
- Call your doctor to find out what to do.
See also: Dosage Information (in more detail)
What are some side effects that I need to call my doctor about right away?
WARNING/CAUTION: Even though it may be rare, some people may have very bad and sometimes deadly side effects when taking a drug. Tell your doctor or get medical help right away if you have any of the following signs or symptoms that may be related to a very bad side effect:
- Signs of an allergic reaction, like rash; hives; itching; red, swollen, blistered, or peeling skin with or without fever; wheezing; tightness in the chest or throat; trouble breathing, swallowing, or talking; unusual hoarseness; or swelling of the mouth, face, lips, tongue, or throat.
- Signs of a urinary tract infection (UTI) like blood in the urine, burning or pain when passing urine, feeling the need to pass urine often or right away, fever, lower stomach pain, or pelvic pain.
- Low mood (depression).
- Chest pain or pressure.
- Shortness of breath.
- Swelling in the arms or legs.
- Feeling very tired or weak.
- Vaginal bleeding that does not stop or go back to normal.
- This medicine may cause nerve damage in the area where the injection is given. Call your doctor right away if you have any leg numbness, tingling, or weakness.
What are some other side effects of Fulvestrant?
All drugs may cause side effects. However, many people have no side effects or only have minor side effects. Call your doctor or get medical help if any of these side effects or any other side effects bother you or do not go away:
- Hot flashes.
- Upset stomach or throwing up.
- Feeling tired or weak.
- Back pain.
- Hard stools (constipation).
- Bone pain.
- Muscle or joint pain.
- Not hungry.
- Throat irritation.
- Belly pain.
- Loose stools (diarrhea).
- Not able to sleep.
- Sweating a lot.
- Flu-like signs.
- Pain where the shot was given.
These are not all of the side effects that may occur. If you have questions about side effects, call your doctor. Call your doctor for medical advice about side effects.
You may report side effects to the FDA at 1-800-FDA-1088. You may also report side effects at http://www.fda.gov/medwatch.
See also: Side effects (in more detail)
If OVERDOSE is suspected:
If you think there has been an overdose, call your poison control center or get medical care right away. Be ready to tell or show what was taken, how much, and when it happened.
How do I store and/or throw out Fulvestrant?
- If you need to store fulvestrant at home, talk with your doctor, nurse, or pharmacist about how to store it.
Consumer information use
- If your symptoms or health problems do not get better or if they become worse, call your doctor.
- Do not share your drugs with others and do not take anyone else's drugs.
- Keep a list of all your drugs (prescription, natural products, vitamins, OTC) with you. Give this list to your doctor.
- Talk with the doctor before starting any new drug, including prescription or OTC, natural products, or vitamins.
- Keep all drugs in a safe place. Keep all drugs out of the reach of children and pets.
- Throw away unused or expired drugs. Do not flush down a toilet or pour down a drain unless you are told to do so. Check with your pharmacist if you have questions about the best way to throw out drugs. There may be drug take-back programs in your area.
- Some drugs may have another patient information leaflet. Check with your pharmacist. If you have any questions about fulvestrant, please talk with your doctor, nurse, pharmacist, or other health care provider.
- If you think there has been an overdose, call your poison control center or get medical care right away. Be ready to tell or show what was taken, how much, and when it happened.
Always consult your healthcare provider to ensure the information displayed on this page applies to your personal circumstances.
More about fulvestrant
- Fulvestrant Side Effects
- During Pregnancy
- Dosage Information
- Drug Interactions
- Support Group
- En Español
- 7 Reviews
- Drug class: estrogen receptor antagonists
Other brands: Faslodex