Aromatase inhibitor

A class of medicines known as aromatase inhibitors. Hormone receptor-positive breast cancer is the main condition they treat. This applies specifically to postmenopausal women. The aromatase enzyme is blocked by these medicines to achieve this effect. This enzyme converts androgens into oestrogen in the body. By reducing circulating oestrogen levels, aromatase inhibitors help slow or stop the growth of hormone-sensitive tumours.

This category includes options prescribed for both early-stage and advanced breast cancer, often as part of adjuvant therapy following surgery or other treatments. Some formulations may also be used off-label in specific hormone-related conditions under medical supervision. Each aromatase inhibitor varies slightly in dosing, side-effect profiles, and clinical indications, making it important to follow a doctor’s guidance closely.

Common side effects associated with this drug class include joint stiffness, hot flashes, and bone density changes, which should be monitored regularly during treatment. Patients and carers are encouraged to discuss suitability, dosage, and monitoring requirements with a qualified GP before starting therapy.

Browse our range of aromatase inhibitor medicines below to find options suited to your prescribed treatment plan.