Pregnancy & Lactation: Risk data not available
What is Elacestrant?
Elacestrant is used to treat advanced hormone-related breast cancer in postmenopausal women and adult men when cancer has progressed or has spread to other parts of the body (metastatic) after other treatments have failed.
Your doctor will make sure you have the correct tumor type to be treated with elacestrant.
Elacestrant may also be used for purposes not listed in this medication guide.
Warnings
Tell your doctor if you have ever had:
- high cholesterol or triglycerides;
- liver disease.
Elacestrant can harm an unborn baby if the mother or the father is using this medicine.
- If you are a woman, you may need a pregnancy test to make sure you are not pregnant. Use birth control while using this medicine and for at least 1 week after your last dose.
- If you are a man, use birth control if your sex partner is able to get pregnant. Keep using birth control for at least 1 week after your last dose.
- Tell your doctor right away if a pregnancy occurs.
Elacestrant may affect fertility in men or women. Pregnancy could be harder to achieve while either parent is using this medicine.
Do not breastfeed while using this medicine, and for at least 1 week after your last dose.
How should I use Elacestrant
Use Elacestrant (Oral) exactly as directed on the label, or as prescribed by your doctor. Do not use in larger or smaller amounts or for longer than recommended.
Follow all directions on your prescription label and read all medication guides or instruction sheets. Use the medicine exactly as directed.
Take elacestrant once a day at the same time each day.
Take this medicine with food.
Do not change your dose or stop taking elacestrant without your doctor's advice.
Swallow the tablet whole and do not crush, chew, or break it. Do not use a broken tablet.
If you vomit shortly after taking elacestrant, do not take another dose. Take your next dose as scheduled.
You will need frequent blood tests to check your cholesterol and triglycerides before and during treatment with elacestrant.
Store at room temperature away from moisture and heat.
Use the medicine as soon as you can, but skip the missed dose if you are more than 6 hours late for the dose. Use your next dose at the regular time. Do not use two doses at one time.
Elacestrant side effects
Get emergency medical help if you have signs of an allergic reaction: hives, difficult breathing, swelling of your face, lips, tongue, or throat.
Common side effects may include:
- muscle and joint pain;
- nausea, vomiting, loss of appetite;
- increased cholesterol and triglyceride levels in your blood;
- abnormal kidney or liver function tests.
- headache;
- diarrhea, constipation;
- feeling tired;
- stomach pain, heartburn;
- low blood sodium;
- hot flush; or
- low red blood cells (anemia).
Your cancer treatments may be delayed or permanently discontinued if you have certain side effects.
This is not a complete list of side effects and others may occur. Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088.
What other drugs will affect Elacestrant?
Follow your doctor's instructions about any restrictions on food, beverages, or activity.