What type of medication is Anastrozole?

Anastrozole is classified as an aromatase inhibitor, which is a type of medication that works by decreasing the amount of estrogen the body makes. It is particularly used in the treatment of hormone receptor-positive breast cancer in postmenopausal women. The mechanism of action involves inhibiting the aromatase enzyme, responsible for converting androgens into estrogens in peripheral tissues, leading to reduced estrogen levels. This is beneficial in breast cancer treatment as many cancers grow in response to estrogen.

While other classifications like selective estrogen receptor modulators (SERMs) or monoclonal antibodies exist, they function differently and are used in various contexts and types of cancer. Growth factor receptor inhibitors also target specific pathways unrelated to the mechanism of action of Anastrozole. Therefore, the designation of Anastrozole as an aromatase inhibitor accurately reflects its function and use in clinical practice.