About anastrozo le
Aromatase inhibitor
Used for
- Treats hormone-receptor-positive breast cancer in postmenopausal women.
- May reduce recurrence risk after breast cancer surgery.
Usual adult dose
1 mg by mouth once daily for early or advanced breast cancer.
Common side effects
- Hot flushes
- Joint pain or stiffness
- Headache
- Bone thinning and fractures
Important warnings
- Not for premenopausal women unless ovarian suppression is also used.
- May reduce bone density; fracture risk can increase.
- Report new breast lumps, vaginal bleeding, or persistent bone pain.
- Can raise cholesterol; monitoring may be needed.
Pregnancy
Avoid during pregnancy; it may harm the fetus. Pregnancy status should be checked before treatment when relevant.
Breastfeeding
Do not breastfeed during treatment or for at least two weeks after the final dose.
Interactions
- Tamoxifen and estrogen-containing medicines can reduce anastrozole's effect.
- Tell clinicians about all medicines and supplements, especially hormone treatments.
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 It may be incomplete or out of date.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.