Anastrozole 1mg Tablet-Anaridex

Q1: What is Anastrozole (Anaridex) used for?

Anastrozole is used to treat hormone receptor-positive (HR+) breast cancer in postmenopausal women — both as initial (first-line) treatment and as adjuvant therapy to prevent recurrence after surgery.

Q2: How does Anastrozole work against breast cancer?

Anastrozole is a potent aromatase inhibitor that blocks the enzyme aromatase, which converts androgens into estrogen in peripheral tissues. By reducing estrogen levels by approximately 80–85%, it deprives HR+ cancer cells of the estrogen they need to grow.

Q3: What type of breast cancer is Anastrozole used for?

Anastrozole is specifically indicated for hormone receptor-positive (ER+ and/or PR+) breast cancer in postmenopausal women. It is not appropriate for hormone receptor-negative cancers.

Q4: How is Anastrozole administered?

It is taken orally as a single 1mg tablet once daily, with or without food, at approximately the same time each day. Consistency is important for maintaining steady drug levels.

Q5: How long is Anastrozole treatment?

Adjuvant anastrozole therapy is typically continued for 5 years after surgery, and in some cases extended up to 10 years. Duration depends on individual risk factors and oncologist assessment.

Q6: What are the most common side effects?

Common side effects include hot flashes, joint pain and stiffness (arthralgia), weakness and fatigue, mood changes, nausea, and headache. Joint symptoms are the most frequently reported complaint.

Q7: What serious side effects require emergency care?

Seek immediate medical attention for bone fractures, severe chest pain or palpitations (cardiovascular events), signs of severe allergic reactions (rash, swelling, difficulty breathing), or significant liver problems (jaundice, dark urine).

Q8: What drugs interact with Anastrozole?

Estrogen-containing medications (HRT, contraceptive pills) directly counteract anastrozole's mechanism and are contraindicated. Tamoxifen should not be used concurrently. Warfarin users need close INR monitoring.

Q9: Is Anastrozole safe during pregnancy?

No. Anastrozole is contraindicated in pregnancy as it may cause fetal harm. It is indicated only for postmenopausal women. Women of childbearing potential must only use it with confirmed ovarian suppression and effective contraception.

Q10: What monitoring is needed during Anastrozole treatment?

Bone mineral density (DXA scan) monitoring is recommended at baseline and every 1–2 years during treatment. Cardiovascular risk factors and liver function should also be assessed periodically.

Q11: How should Anastrozole be stored?

Store at room temperature 20°C–25°C, protected from moisture and direct sunlight. Keep in original blister packaging out of reach of children. Do not use after the expiry date.

Q12: Is Anastrozole available without a prescription?

No. Anastrozole is a prescription-only oncology medication. It must be prescribed and monitored by a qualified oncologist as part of a comprehensive breast cancer treatment plan.