Idelalisib (By mouth)
Treats chronic lymphocytic leukemia (CLL).
ZydeligThere may be other brand names for this medicine.
When This Medicine Should Not Be Used:This medicine is not right for everyone. Do not use it if you had an allergic reaction to idelalisib, if you are pregnant, or if you have a history of serious skin reactions (including toxic epidermal necrolysis) to any medicine.
How to Use This Medicine:
- Your doctor will tell you how much medicine to use. Do not use more than directed.
- Swallow the tablet whole. Do not crush, break, or chew it.
- This medicine should come with a Medication Guide. Ask your pharmacist for a copy if you do not have one.
- Missed dose: If you miss a dose and it is less than 6 hours from your usual dose, take the missed dose and go back to your regular schedule. If you miss a dose and it is more than 6 hours from your usual dose, skip the missed dose and go back to your regular dosing schedule. Do not use extra medicine to make up for a missed dose.
- Store the medicine in a closed container at room temperature, away from heat, moisture, and direct light.
Drugs and Foods to Avoid:
Ask your doctor or pharmacist before using any other medicine, including over-the-counter medicines, vitamins, and herbal products.
- Some medicines can affect how idelalisib works. Tell your doctor if you are using ketoconazole, midazolam, or rifampin.
Warnings While Using This Medicine:
- It is not safe to take this medicine during pregnancy. It could harm an unborn baby. Tell your doctor right away if you become pregnant. If you are a woman who can get pregnant, your doctor may do tests to make sure you are not pregnant before starting treatment. Use an effective form of birth control during treatment with this medicine and for at least 1 month after the last dose. Male patients with female partners should use an effective form of birth control during treatment and for 3 months after the last dose.
- Do not breastfeed during treatment and for at least 1 month after the last dose.
- Tell your doctor if you have liver disease, lung problems, or any type of infection.
- This medicine may cause the following problems:
- Liver problems
- Pneumonitis (swelling of the lungs)
- Bowel problems, including perforation (hole)
- Serious skin reactions, including Stevens-Johnson syndrome and toxic epidermal necrolysis
- Serious infections (including pneumonia, sepsis)
- Medicines used to treat cancer are very strong and can have many side effects. Before receiving this medicine, make sure you understand all the risks and benefits. It is important for you to work closely with your doctor during your treatment.
- This medicine may make you bleed, bruise, or get infections more easily. Take precautions to prevent illness and injury. Wash your hands often.
- This medicine can cause diarrhea. Call your doctor if the diarrhea becomes severe, does not stop, or is bloody. Do not take any medicine to stop diarrhea until you have talked to your doctor. Diarrhea can occur 2 months or more after you stop taking this medicine.
- Your doctor will do lab tests at regular visits to check on the effects of this medicine. Keep all appointments.
- Keep all medicine out of the reach of children. Never share your medicine with anyone.
Possible Side Effects While Using This Medicine:
Call your doctor right away if you notice any of these side effects:
- Allergic reaction: Itching or hives, swelling in your face or hands, swelling or tingling in your mouth or throat, chest tightness, trouble breathing
- Blistering, peeling, red skin rash
- Chest pain, trouble breathing
- Dark urine or pale stools, nausea, vomiting, loss of appetite, stomach pain, yellow skin or eyes
- Fever, chills, cough, sore throat, body aches
- Severe bloody or watery diarrhea
- Unusual bleeding, bruising, or weakness
If you notice these less serious side effects, talk with your doctor:
If you notice other side effects that you think are caused by this medicine, tell your doctor
Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088
Last Updated: 8/5/2022