Prescription
Aromatase inhibitor (hormone blocker for cancer)
Anastrozole
Last reviewed April 2026
Who is this for?
What is this drug?
Anastrozole is a hormone-blocking drug that works by lowering the amount of estrogen (a female hormone) your body produces, which helps stop certain breast cancers that need estrogen to grow.
What is it used for?
Breast cancer in women who have passed menopause (women who have stopped seeing their monthly period)
Prescription Required
A doctor's prescription is required to obtain this drug legally.