Anastrozole (anastrozole) — Uses, Dosage, Side Effects & Safety

Drug class: Aromatase inhibitor

Overview

Anastrozole is a prescription medication used primarily to treat breast cancer in postmenopausal women. It is most commonly prescribed for hormone receptor-positive early breast cancer, as well as advanced or metastatic breast cancer. Anastrozole works by lowering estrogen levels in the body, which helps slow or stop the growth of certain types of breast tumors that need estrogen to grow. This medicine belongs to a group of drugs called aromatase inhibitors. By blocking the aromatase enzyme, anastrozole reduces the amount of estrogen produced, making it effective for hormone-sensitive cancers. It is not suitable for use in premenopausal women or in men for breast cancer treatment. Key points: Take anastrozole exactly as prescribed, usually once daily. Regular follow-up and monitoring are important to check for side effects and ensure the medicine is working. Inform your healthcare provider about any other medications or supplements you are taking.

Therapeutic uses

• Breast cancer

Common side effects

• Hot flashes
• Joint pain
• Nausea
• Fatigue
• Bone pain
• Osteoporosis
• Vaginal dryness

Frequently Asked Questions about Anastrozole

What is anastrozole used for?

Anastrozole is used to treat hormone receptor-positive breast cancer in postmenopausal women. It is also used to help prevent cancer recurrence after initial treatment.

How does anastrozole work?

Anastrozole works by blocking the aromatase enzyme, which reduces estrogen production in the body. Lower estrogen levels help slow or stop the growth of certain breast cancers.

Can men take anastrozole?

Anastrozole is not typically used for breast cancer in men. Its use in men is limited and should only be under specialist supervision.

What should I do if I miss a dose?

Take the missed dose as soon as you remember. If it is almost time for your next dose, skip the missed dose and continue your regular schedule. Do not double up doses.

What are the most common side effects?

Common side effects include hot flashes, joint pain, weakness, sore throat, and mild nausea.

Is anastrozole safe during pregnancy?

No, anastrozole should not be used during pregnancy or breastfeeding. It may harm the unborn baby.

How long will I need to take anastrozole?

The duration of treatment varies but is often prescribed for 5 years or as directed by your oncologist.

Educational information only. Always consult a qualified healthcare professional before starting, stopping, or changing any medication.