About fulvestrant
Estrogen receptor antagonist
Used for
- Hormone receptor-positive advanced breast cancer in postmenopausal women
- Advanced breast cancer progressing after anti-estrogen treatment
- Combination treatment for certain advanced breast cancers
Usual adult dose
500 mg by intramuscular injection on days 1, 15, and 29, then every 28 days; some combinations use a 500 mg monthly dose.
Common side effects
- Injection-site pain
- Nausea
- Hot flushes
- Joint or muscle pain
Important warnings
- Can harm an unborn baby; effective contraception is required during treatment and for one year afterward.
- Use caution with bleeding disorders or medicines that increase bleeding.
- May cause liver problems; liver tests may be needed.
- Contains alcohol; caution with alcohol sensitivity.
Pregnancy
Not recommended; may harm the fetus. Avoid pregnancy during treatment and for one year after the final dose.
Breastfeeding
Breastfeeding is not recommended during treatment and for one year after the final dose.
Interactions
- Blood thinners, including warfarin, may increase bleeding risk.
AI-generated from general medical knowledge, not from this product's official leaflet. It may be incomplete or out of date. Not medical advice — ask a pharmacist or doctor before making any decision.