In this Article

• What is letrozole (Femara)?
• What are the possible side effects of letrozole (Femara)?
• What is the most important information I should know about letrozole (Femara)?
• What should I discuss with my healthcare provider before using letrozole (Femara)?
• How should I take letrozole (Femara)?
• What happens if I miss a dose (Femara)?
• What happens if I overdose (Femara)?
• What should I avoid while taking letrozole (Femara)?
• What other drugs will affect letrozole (Femara)?
• Where can I get more information?

What should I discuss with my healthcare provider before using letrozole (Femara)?

You should not use this medication if you are allergic to letrozole, or if you have not gone completely through menopause.

Before taking letrozole, tell your doctor if you have liver disease. You may need a dose adjustment or special tests to safely take this medication.

FDA pregnancy category D: This medication can cause harm to an unborn baby. Do not use letrozole if you are pregnant. Tell your doctor if you become pregnant during treatment. Use an effective form of birth control while you are using this medication.

It is not known whether letrozole passes into breast milk. Do not take letrozole if you are breast-feeding a baby.

How should I take letrozole (Femara)?

Take letrozole exactly as it was prescribed for you. Do not take it in larger doses or for longer than recommended by your doctor.

Take each dose with a full glass (8 ounces) of water.

Letrozole is usually taken once a day. Follow your doctor's instructions.

Letrozole can be taken with or without food.

To be sure this medication is helping your condition, you will need to be tested on a regular basis. Your bone mineral density may also need to be checked. It is important that you not miss any scheduled visits to your doctor.

Store letrozole at room temperature away from moisture and heat.