Generic Name: letrozole, Oral tablet

Generic Name:

letrozole, Oral tablet

Femara

All Brands

  • Femara
SECTION 1 of 5

Highlights for letrozole

Oral tablet
1
LETROZOLE (LET roe zole) blocks the production of estrogen. Certain types of breast cancer grow under the influence of estrogen. Letrozole helps block tumor growth. This medicine is used to treat advanced breast cancer in postmenopausal women.
2 3 4
Talk to your healthcare provider if you have any of these conditions.
5
Know what to watch for and get tips for reducing your risks while taking this drug.
SECTION 2 of 5

letrozole Side Effects

Oral tablet

Side effects that you should report to your doctor or health care professional as soon as possible:

  • allergic reactions like skin rash, itching, or hives
  • bone fracture
  • chest pain
  • difficulty breathing or shortness of breath
  • severe pain, swelling, warmth in the leg
  • unusually weak or tired
  • vaginal bleeding

Side effects that usually do not require medical attention (report to your doctor or health care professional if they continue or are bothersome):

  • bone, back, joint, or muscle pain
  • dizziness
  • fatigue
  • fluid retention
  • headache
  • hot flashes, night sweats
  • nausea
  • weight gain
SECTION 3 of 5

letrozole May Interact with Other Medications

Oral tablet

Do not take this medicine with any of the following medications:

  • estrogens, like hormone replacement therapy or birth control pills

This medicine may also interact with the following medications:

  • dietary supplements such as androstenedione or DHEA
  • prasterone
  • tamoxifen
Disclaimer: Our goal is to provide you with the most relevant and current information. However, because drugs interact differently in each person, we cannot guarantee that this information includes all possible interactions. This information is not a substitute for medical advice. Always speak with your healthcare provider about possible interactions with all prescription drugs, vitamins, herbs and supplements, and over-the-counter drugs that you are taking.
SECTION 4 of 5

How to Use letrozole

Oral tablet

Take this medicine by mouth with a glass of water. You may take it with or without food. Follow the directions on the prescription label. Take your medicine at regular intervals. Do not take your medicine more often than directed. Do not stop taking except on your doctor's advice.

Talk to your pediatrician regarding the use of this medicine in children. Special care may be needed.

What should I tell my health care provider before I take this medicine?

They need to know if you have any of these conditions:

  • liver disease
  • osteoporosis (weak bones)
  • an unusual or allergic reaction to letrozole, other medicines, foods, dyes, or preservatives
  • pregnant or trying to get pregnant
  • breast-feeding
What if I miss a dose?

If you miss a dose, take it as soon as you can. If it is almost time for your next dose, take only that dose. Do not take double or extra doses.

What should I watch for while using this medicine?

Visit your doctor or health care professional for regular check-ups to monitor your condition.

Do not use this drug if you are pregnant. Serious side effects to an unborn child are possible. Talk to your doctor or pharmacist for more information.

You may get drowsy or dizzy. Do not drive, use machinery, or do anything that needs mental alertness until you know how this medicine affects you. Do not stand or sit up quickly, especially if you are an older patient. This reduces the risk of dizzy or fainting spells.

Where should I keep my medicine?

Keep out of the reach of children.

Store between 15 and 30 degrees C (59 and 86 degrees F). Throw away any unused medicine after the expiration date.

What does the pill look like?

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SECTION 5 of 5

How Much Does letrozole Cost?

Oral tablet
We've partnered with GoodRX so you can compare prices and save money on your next prescription. Check out the lowest cash prices below and enter your zip code to find the best deal near you.

Compare prices and save money on your next refill!

Lowest price for letrozole

Membership warehouse $12.90
Publix $14.87
Safeway $14.87
These represent the lowest cash prices for letrozole and may be lower than your insurance.

Find the lowest prices of letrozole near you

These represent the lowest cash prices for letrozole and may be lower than your insurance.

Last Updated: February 27, 2009

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