Anastrozole
Anastrozole is an aromatase inhibitor used by oncology teams for selected hormone-receptor-positive Breast Cancer. It lowers oestrogen and is not interchangeable with every hormonal cancer treatment.
Key points
- Menopausal status, cancer features and previous treatment determine whether anastrozole is appropriate.
- Lower oestrogen can reduce bone density and cause joint symptoms; bone and cardiovascular risk may need monitoring.
- New chest pain, stroke symptoms or a severe allergic reaction needs urgent care.
Select a listed product and pack to order online. Product information is not an oncology regimen. Whether it suits you depends on specialist review and monitoring; ask your doctor or pharmacist.
Important safety checks
Pregnancy potential, bone density, fracture history, cholesterol, heart disease, liver function and other hormonal products require review. Do not stop cancer treatment without the oncology team.
When to seek urgent care
Seek emergency help for chest pain, sudden breathlessness, facial droop, one-sided weakness, speech difficulty or facial swelling with breathing difficulty.
Further reading
What is anastrozole used for?
Anastrozole is an aromatase inhibitor used for some hormone-receptor-positive breast cancers, including as adjuvant treatment.
How does anastrozole work?
Anastrozole blocks the enzyme that converts androgens into oestrogens, which lowers circulating oestrogen levels in post-menopausal women. This limits the growth of hormone-sensitive tumours.
What anastrozole products does SGMeds list?
Products containing anastrozole on SGMeds include Arimidex and Armotraz. Compare their forms, strengths and pack sizes.
How long does anastrozole take to work?
Anastrozole usually starts working within 2 to 4 weeks.
What are the side effects of anastrozole?
Common side effects include hot flushes, weakness, joint pain and headache. Vaginal dryness, hair thinning, nausea and rash can also occur. Over time it can thin the bones (osteoporosis) and raise the risk of fractures, and a severe skin reaction needs immediate medical attention.
Can anastrozole be taken with other medicines?
Anastrozole interacts with oestrogen-containing therapies and with tamoxifen. If you take other hormonal products, ask a doctor or pharmacist before you use it.
Who should not take anastrozole?
It is not suitable if you are allergic to anastrozole, are pre-menopausal, or are pregnant or breastfeeding. Menopausal status, the type of cancer and previous treatment help determine whether it is right for you, so a doctor or pharmacist can advise.
What does anastrozole cost in Singapore dollars?
Each product on this page shows a price for each strength and pack size in Singapore dollars, converted from US dollars, so the exchange rate can change the final amount. Larger packs usually cost less per tablet.
Payment and prices →Can I buy anastrozole over the counter in Singapore?
Yes, online. SGMeds does not ask for a prescription to order anastrozole: we place the order with our pharmacy partner, which prepares it and arranges delivery on your behalf.
Ordering without a prescription →Where can I buy anastrozole in Singapore?
You can order anastrozole here on SGMeds: choose the product, strength and pack, then check out. Parcels go to Singapore and Malaysia by Express shipping (tracked, up to 1 week) or Regular shipping (up to 3 weeks).
How ordering works →