Anastrozole works by reversibly binding to the aromatase enzyme, and through competitive inhibition blocks the conversion of androgens to estrogens in peripheral (extragonadal) tissues.
You may need to take anastrozole for several years or longer. Continue to take anastrozole even if you feel well. Do not stop taking anastrozole without talking to your doctor.
Ask your pharmacist or doctor for a copy of the manufacturer's information for the patient.
Anastrozole may cause side effects. Tell your doctor if any of these symptoms are severe or do not go away:
Some side effects can be serious. If you experience any of these symptoms, call your doctor immediately:
Anastrozole may cause or worsen osteoporosis. It can decrease the density of your bones and increase the chance of broken bones and fractures. Talk to your doctor about the risks of taking this medication and to find out what you can do to decrease these risks.
Anastrozole may cause other side effects. Call your doctor if you have any unusual problems while taking this medication.
You may take anastrozole with or without food.
You may need to keep taking this medication for up to 5 years. Follow your doctor's instructions.
Store at room temperature away from moisture and heat.
There may be an interaction between anastrozole and any of the following: any estrogen-containing medications. aripiprazole. dofetilide.
Keep all appointments with your doctor and the laboratory. Your doctor may order certain lab tests to check your body's response to anastrozole.
Do not let anyone else take your medication. Ask your pharmacist any questions you have about refilling your prescription.
It is important for you to keep a written list of all of the prescription and nonprescription (over-the-counter) medicines you are taking, as well as any products such as vitamins, minerals, or other dietary supplements. You should bring this list with you each time you visit a doctor or if you are admitted to a hospital. It is also important information to carry with you in case of emergencies.
Anastrozole can cause a severe allergic reaction. Symptoms may include: trouble breathing. swelling of your throat or tongue.