enasidenib (Oral route)
Patients treated with enasidenib have experienced symptoms of differentiation syndrome, which can be fatal if not treated. If differentiation syndrome is suspected, initiate corticosteroid therapy and hemodynamic monitoring until symptom resolution .
Commonly used brand name(s)
In the U.S.
Available Dosage Forms:
Therapeutic Class: Antineoplastic Agent
Uses For enasidenib
Enasidenib is used to treat acute myeloid leukemia (AML) with an isocitrate dehydrogenase-2 (IDH2) mutation in patients who have not responded to other treatments or to those whose cancer has come back after treatment.
Enasidenib is an isocitrate dehydrogenase-2 inhibitor. It works by blocking the enzyme isocitrate dehydrogenase which is needed by the cancer cells to grow.
enasidenib is available only with your doctor's prescription.
Before Using enasidenib
In deciding to use a medicine, the risks of taking the medicine must be weighed against the good it will do. This is a decision you and your doctor will make. For enasidenib, the following should be considered:
Tell your doctor if you have ever had any unusual or allergic reaction to enasidenib or any other medicines. Also tell your health care professional if you have any other types of allergies, such as to foods, dyes, preservatives, or animals. For non-prescription products, read the label or package ingredients carefully.
Appropriate studies have not been performed on the relationship of age to the effects of enasidenib in the pediatric population. Safety and efficacy have not been established.
Appropriate studies performed to date have not demonstrated geriatric-specific problems that would limit the usefulness of enasidenib in the elderly.
There are no adequate studies in women for determining infant risk when using this medication during breastfeeding. Weigh the potential benefits against the potential risks before taking this medication while breastfeeding.
Interactions with Medicines
Although certain medicines should not be used together at all, in other cases two different medicines may be used together even if an interaction might occur. In these cases, your doctor may want to change the dose, or other precautions may be necessary. Tell your healthcare professional if you are taking any other prescription or nonprescription (over-the-counter [OTC]) medicine.
Interactions with Food/Tobacco/Alcohol
Certain medicines should not be used at or around the time of eating food or eating certain types of food since interactions may occur. Using alcohol or tobacco with certain medicines may also cause interactions to occur. Discuss with your healthcare professional the use of your medicine with food, alcohol, or tobacco.
Proper Use of enasidenib
Use enasidenib exactly as directed by your doctor. Do not use more of it, do not use it more often, and do not use it for a longer time than your doctor ordered.
enasidenib comes with a Medication Guide. Read and follow the instructions carefully. Ask your doctor if you have any questions.
Swallow the tablet whole with 1 cup (8 ounces) of water. Do not crush, break, or chew it.
enasidenib may be taken with or without food.
The dose of enasidenib will be different for different patients. Follow your doctor's orders or the directions on the label. The following information includes only the average doses of enasidenib. If your dose is different, do not change it unless your doctor tells you to do so.
The amount of medicine that you take depends on the strength of the medicine. Also, the number of doses you take each day, the time allowed between doses, and the length of time you take the medicine depend on the medical problem for which you are using the medicine.
- For oral dosage form (tablets):
- For treatment of acute myeloid leukemia (AML):
- Adults—At first, 100 milligrams (mg) once a day. Your doctor may adjust your dose as needed.
- Children—Use and dose must be determined by your doctor.
- For treatment of acute myeloid leukemia (AML):
If you miss a dose of enasidenib, take it as soon as possible. However, if it is almost time for your next dose, skip the missed dose and go back to your regular dosing schedule. Do not double doses.
If you miss a dose or vomit after taking a dose of enasidenib, take the missed dose as soon as possible on the same day, and then go back to your regular dosing schedule. Do not take 2 doses at the same time to make up for a missed dose.
Keep out of the reach of children.
Do not keep outdated medicine or medicine no longer needed.
Ask your healthcare professional how you should dispose of any medicine you do not use.
Store the medicine in a closed container at room temperature, away from heat, moisture, and direct light. Keep from freezing.
Store enasidenib in its original container.
Precautions While Using enasidenib
It is very important that your doctor check your progress at regular visits to make sure that enasidenib is working properly. Blood tests may be needed to check for unwanted effects at least every 2 weeks for the first 3 months during treatment with enasidenib.
Using enasidenib while you are pregnant can harm your unborn baby. Birth control pills may not work as well to prevent pregnancy when used with enasidenib. Use another form of birth control (eg, condoms, spermicide) along with your pills. Women should use an effective form of birth control during treatment and for at least 1 month after the last dose. Men should use an effective form of birth control during treatment and for at least 1 month after the last dose to prevent pregnancy in a sexual partner. If a pregnancy occurs while using the medicine, tell your doctor right away.
Talk with your doctor before using enasidenib if you plan to have children. Some men and women who use enasidenib have become infertile (unable to have children).
Using enasidenib may increase your risk of having a condition called differentiation syndrome, which may be life-threatening. It may occur within 10 days and during the first 5 months of treatment with enasidenib. Check with your doctor right away if you start to have a fever, cough, shortness of breath, swelling of the arms or legs or around the neck, groin, or underarms, rapid weight gain, or bone pain.
Do not take other medicines unless they have been discussed with your doctor. This includes prescription or nonprescription (over-the-counter [OTC]) medicines and herbal or vitamin supplements.
enasidenib Side Effects
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.
Check with your doctor immediately if any of the following side effects occur:More common
- blue lips, fingernails, or skin
- bone pain
- chest pain
- coughing that sometimes produces a pink frothy sputum
- decreased awareness or responsiveness
- decreased urine output
- difficult or troubled breathing
- difficult, fast, noisy breathing
- eye pain
- fast heartbeat
- general feeling of illness
- increased sweating
- irregular, fast or slow, or shallow breathing
- loss of consciousness
- muscle or joint pain
- muscle twitching
- pale skin
- rapid weight gain
- rapid, shallow breathing
- severe sleepiness
- sore throat
- swelling around the neck, groin, or underarm area
- swelling of the arms, feet, or lower legs
- swelling of the face, ankles, or hands
- unusual drowsiness, dullness, tiredness, weakness or feeling of sluggishness
- yellow skin or eyes
Some 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. Also, your health care professional may be able to tell you about ways to prevent or reduce some of these side effects. Check with your health care professional if any of the following side effects continue or are bothersome or if you have any questions about them:More common
- Change in taste
- decreased appetite
- loss of taste
Other side effects not listed may also occur in some patients. If you notice any other effects, check with your healthcare professional.
Call your doctor for medical advice about side effects. You may report side effects to the FDA at 1-800-FDA-1088.
See also: Side effects (in more detail)
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More about enasidenib
- Side Effects
- During Pregnancy
- Dosage Information
- Drug Interactions
- Support Group
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- Drug class: miscellaneous antineoplastics
Other brands: Idhifa