What is this medication for?
Fulvestrant belongs to the group of cancer-fighting medications known as antineoplastics, and specifically to the type of antineoplastics known as anti-estrogens. It treats certain types of breast cancer by blocking the effects of the hormone estrogen in the body. This prevents the growth of the types of breast cancer cells that require estrogen for growth and survival.
Your doctor may have suggested this medication for conditions other than those
listed here. As well, some forms of this medication may not be used for all
of the conditions discussed here. If you have not discussed this with your doctor
or are not sure why you are taking this medication, speak to your doctor. Do
not give this medication to anyone else, even if they have the same symptoms
as you do. It can be harmful for people to take this medication if their
doctor has not prescribed it. Do not stop taking this medication without
consulting your doctor.
What form(s) does this medication come in?
Faslodex® is available as:
Some medications may have other generic brands available. Always ask your doctor or pharmacist about the safety of switching between brands of the same medication.
How should I use this medication?
Fulvestrant is available only as an injection of 250 mg, as a single 5 mL
injection or two 2.5 mL injections, that is given once a month into the
muscle of the buttocks. Some people can be taught to self-administer the medication.
If this is the case, make sure you understand exactly how it is to be injected
as instructed by your doctor or nurse. The medication should be a clear, colorless-to-yellow, thick liquid. Do not use the medication if it appears cloudy or discolored,
or if there are particles floating in it.
Many things can affect the dose of a medication that a person needs, such as body weight, other medical conditions, and other medications. If your doctor has recommended a dose different from the ones listed here, do not change the way that you are taking the medication without consulting your doctor.
It is important that this medication be taken exactly as prescribed by your doctor. If you miss a dose, take it as soon as possible and continue with your regular schedule. If it is almost time for your next dose, skip the missed dose and continue with your regular dosing schedule. Do not take a double dose to make up for a missed one.
Store this medication at in the refrigerator in its original container, protect
it from light and moisture, and keep it out of the reach of children.
Who should NOT take this medication?
Fulvestrant should not be used by anyone who:
- is allergic to fulvestrant or any ingredients of the medication
- is pregnant
- is at an increased risk of bleeding, low platelets or is taking blood thinners