Femara
Femara
Oral Uses
This medication is used with other medications to treat certain types
of breast cancer (e.g., hormone-receptor-positive breast cancer) in
women after menopause. Letrozole is also used to help prevent the
cancer from returning. Some breast cancers are made to grow faster
by a natural hormone called estrogen. Letrozole decreases the amount
of estrogen the body makes and helps to slow or reverse the growth
of these breast cancers.
Letrozole is not to be used in women of childbearing age.
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What
should my health care professional know before I take letrozole?
They need to know if you have any of these conditions:
•liver disease
•osteoporosis
•an unusual or allergic reaction to letrozole, other medicines,
foods, dyes, or preservatives
•pregnant or trying to get pregnant
•breast-feeding
What
is the most important information I should know about letrozole?
• Before taking letrozole, tell your doctor if you have liver
disease.You may not be able to use letrozole or you may need a dosage
adjustment or special tests during treatment.
• Do not use this medication if you are pregnant. It could cause
harm to the unborn baby. Use an effective form of birth control, and
tell your doctor if you become pregnant during treatment.
• Use this medication exactly as it was prescribed for you.
Do not use it in larger doses or for longer than recommended by your
doctor.
• There may be other drugs that can affect letrozole. Tell your
doctor about all the prescription and over-the-counter medications
you use. This includes vitamins, minerals, herbal products, and drugs
prescribed by other doctors. Do not start using a new medication without
telling your doctor.
• Stop using this medication and get emergency medical help
if you think you have used too much medicine, or if you have any of
these signs of an allergic reaction: hives; difficulty breathing;
swelling of your face, lips, tongue, or throat.
• Less serious side effects are more likely, and you may have
none at all. Talk to your doctor about any side effect that seems
unusual or is especially bothersome.
Side Effects of This Medicine
Along with its needed effects, a medicine may cause some unwanted
effects. Although not all of these side effects may occur, if they
do occur they may need medical attention.
The following side effects may be caused by blood clots, which could lead to a heart attack or a stroke. Stop taking this medicine and get emergency help immediately if any of the following side effects occur:
More
common
Shortness of breath
Less common
Chest pain
Rare
Continuing or severe nervousness; cough ; dizziness or lightheadedness;
fainting; fast heartbeat; heart attack; increased sweating; nausea;
pain in chest, groin, or legs, especially the calves; severe, sudden
headache; slurred speech; severe and sudden, unexplained shortness
of breath; sudden loss of coordination ; sudden, severe weakness or
numbness in arm or leg ; vision changes
Also, check with your doctor as soon as possible if any of the following
side effects occur:
Less
common
Bone fracture; breast pain; chills, fever, or flu-like symptoms; mental
depression; swelling of feet or lower legs
Rare
Vaginal bleeding
Other side effects may occur that usually do not need medical attention.
These side effects may go away during treatment as your body adjusts
to the medicine. However, check with your doctor if any of the following
side effects continue or are bothersome:
More
common
Back pain; bone pain; hot flashes (sudden sweating and feeling of
warmth); joint pain; muscle pain
Less common
Anxiety; confusion; constipation; diarrhea; dry mouth; headache; increased
thirst and urination; loss of appetite or weight loss; metallic taste;
skin rash or itching; sleepiness; spinning or whirling sensation causing
loss of balance; stomach pain or upset; trouble sleeping; unusual
tiredness; vomiting; weakness; weight gain
Incidence not known
Blurred vision
Letrozole sometimes causes a loss of hair.
Other side effects not listed above may also occur in some patients. If you notice any other effects, check with your doctor.
We will not be held responsible for misuse of prescription drugs or misinformation on this website. Please check with your health care professional for all pertinent information on prescription medications before using them.
