Letrozole is administrated to cure breast cancer in postmenopausal women. This drug is often administrated in women who have been taking tamoxifen (Tamoxifen) for 5 years.
You should not use this medication if you are allergic to letrozole, or if you have not gone completely through menopause. Do not use letrozole if you are pregnant, or if you have not gone completely through menopause. Tell your doctor right away if you become pregnant during treatment.
For use as a first-line treatment of postmenopausal women with positive hormone receptor or hormone receptor unknown locally advanced or metastatic breast cancer. Letrozole is also indicated for the treatment of advanced breast cancer in postmenopausal women with disease progression following antiestrogen therapy: 2.5 mg tablet orally administered once a day before meals.
Letrozole minimizes estrogen levels in postmenopausal women, which may slow the growth of certain types of breast tumors that need a high level of estrogen in the body.
To make sure you can safely take letrozole, tell your doctor if you have any of these other health problems: osteoporosis; high cholesterol; or liver disease (especially cirrhosis).
Call for medical help if you have any of these signs of an allergic reaction: hives; difficult breathing; swelling of your face, lips, tongue, or throat.
Less serious side effects can be: dizziness, drowsiness, weakness, tired feeling; hot flashes, warmth in your face or chest; flushing (warmth, redness, or tingly feeling); headache; nausea, constipation; bone pain, muscle or joint pain; numbness, tingling, weakness, or stiffness in your hand or fingers; pain in your hand that spreads to your arm, wrist, forearm, or shoulder; night sweats; or weight gain.
In the case of overdosing, call a doctor or go to an emergency point.