Uses

This medication is used to treat certain types of cancer (such as chronic lymphocytic leukemia, small lymphocytic lymphoma). Duvelisib belongs to a class of drugs known as kinase inhibitors. It works by slowing or stopping the growth of cancer cells.

How to use Duvelisib Capsule

Read the Medication Guide provided by your pharmacist before you start taking duvelisib and each time you get a refill. If you have any questions, ask your doctor or pharmacist.

Take this medication by mouth with or without food as directed by your doctor, usually 2 times daily. Swallow the capsules whole. Do not open, break, or chew the capsules.

The dosage is based on your medical condition, response to treatment, and other medications you may be taking. Be sure to tell your doctor and pharmacist about all the products you use (including prescription/nonprescription drugs and herbal products).

Use this medication regularly to get the most benefit from it. To help you remember, take it at the same times each day.

Do not increase your dose or use this drug more often or for longer than prescribed. Your condition will not improve any faster, and your risk of serious side effects will increase. Your doctor may direct you to temporarily stop or reduce your dose if you have side effects. Your doctor may also prescribe other medications to help prevent certain serious side effects. Carefully follow your doctor's directions for all your medications.

Since this drug can be absorbed through the skin and lungs and may harm an unborn baby, women who are pregnant or who may become pregnant should not handle this medication or breathe the dust from the capsules.

Side Effects

See also Warning section.

Diarrhea, nausea, vomiting, abdominal pain, muscle/joint pain, or tiredness may occur. If any of these effects last or get worse, tell your doctor or pharmacist promptly.

Pain or sores in the mouth and throat may occur. Brush your teeth carefully/gently, avoid using mouthwash that contains alcohol, and rinse your mouth often with cool water mixed with baking soda or salt. It may also be best to eat soft, moist foods.

People using this medication may have serious side effects. However, you have been prescribed this drug because your doctor has judged that the benefit to you is greater than the risk of side effects. Careful monitoring by your doctor may decrease your risk.

Tell your doctor right away if you have any serious side effects, including: easy bruising/bleeding, signs of liver damage (such as nausea/vomiting that doesn't stop, loss of appetite, stomach/abdominal pain, yellowing eyes/skin, dark urine).

A very serious allergic reaction to this drug is rare. However, get medical help right away if you notice any symptoms of a serious allergic reaction, including: rash, itching/swelling (especially of the face/tongue/throat), severe dizziness, trouble breathing.

This is not a complete list of possible side effects. If you notice other effects not listed above, contact your doctor or pharmacist.

In the US -

Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088 or at www.fda.gov/medwatch.

In Canada - Call your doctor for medical advice about side effects. You may report side effects to Health Canada at 1-866-234-2345.

Warnings

This medication may lower your ability to fight infections. This may make you more likely to get a serious (rarely fatal) infection or make any infection you have worse. Get medical help right away if you have any signs of infection (such as sore throat that doesn't go away, fever, swollen lymph nodes, chills, cough).

This medication has caused serious (even fatal) bowel problems (such as diarrhea, colitis). Tell your doctor right away if you have new or worsening diarrhea, or stool with blood/mucus.

Duvelisib can commonly cause a rash that is usually not serious. However, you may not be able to tell it apart from a rare rash that could be a sign of a severe reaction. Tell your doctor right away if you develop any rash.

This medication can cause serious (even fatal) inflammation of your lungs. Tell your doctor right away if you develop new or worsening cough or trouble breathing.

Precautions

Before taking duvelisib, tell your doctor or pharmacist if you are allergic to it; or if you have any other allergies. This product may contain inactive ingredients, which can cause allergic reactions or other problems. Talk to your pharmacist for more details.

Before using this medication, tell your doctor or pharmacist your medical history, especially of: recent/current infection.

Duvelisib can make you more likely to get infections or may make current infections worse. Stay away from anyone who has an infection that may easily spread (such as chickenpox, COVID-19, measles, flu). Talk to your doctor if you have been exposed to an infection or for more details.

Tell your health care professional that you are using duvelisib before having any immunizations/vaccinations. Avoid contact with people who have recently received live vaccines (such as flu vaccine inhaled through the nose).

To lower the chance of getting cut, bruised, or injured, use caution with sharp objects like razors and nail cutters, and avoid activities such as contact sports.

Before having surgery, tell your doctor or dentist about all the products you use (including prescription drugs, nonprescription drugs, and herbal products).

Tell your doctor if you are pregnant or plan to become pregnant. You should not become pregnant while using duvelisib. Duvelisib may harm an unborn baby. Your doctor should order a pregnancy test before you start this medication. Men and women using this medication should ask about reliable forms of birth control during treatment and for at least 1 month after the last dose. If you or your partner becomes pregnant, talk to your doctor right away about the risks and benefits of this medication.

Since this drug can be absorbed through the skin and lungs and may harm an unborn baby, women who are pregnant or who may become pregnant should not handle this medication or breathe the dust from the capsules.

It is unknown if this drug passes into breast milk. Because of the possible risk to the infant, breastfeeding is not recommended while using this drug and for at least 1 month after the last dose. Consult your doctor before breastfeeding.

Interactions

Drug interactions may change how your medications work or increase your risk for serious side effects. This document does not contain all possible drug interactions. Keep a list of all the products you use (including prescription/nonprescription drugs and herbal products) and share it with your doctor and pharmacist. Do not start, stop, or change the dosage of any medicines without your doctor's approval.

Other medications can affect the removal of duvelisib from your body, which may affect how duvelisib works. Examples include azole antifungals (such as itraconazole, ketoconazole), apalutamide, enzalutamide, mitotane, rifamycins (such as rifampin/rifabutin), St. John's wort, some drugs used to treat seizures (such as carbamazepine, phenobarbital, phenytoin), among others.

This medication can slow down the removal of other medications from your body, which may affect how they work. Examples of affected drugs include asunaprevir, elacestrant, flibanserin, lomitapide, among others.

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Overdose

If someone has overdosed and has serious symptoms such as passing out or trouble breathing, call 911. Otherwise, call a poison control center right away. US residents can call 1-800-222-1222. Canada residents can call 1-844-764-7669.

Notes Notes

Do not share this medication with others.

Lab and/or medical tests (such as complete blood count, kidney/liver function) should be done while you are taking this medication. Keep all medical and lab appointments.

Missed Dose Missed Dose

If you miss a dose , take it as soon as you remember. If it is more than 6 hours after the missed dose, skip the missed dose. Take your next dose at the regular time. Do not double the dose to catch up.

Storage Storage

Store at room temperature away from light and moisture. Do not store in the bathroom. Keep all medications away from children and pets.

Do not flush medications down the toilet or pour them into a drain unless instructed to do so. Properly discard this product when it is expired or no longer needed. Consult your pharmacist or local waste disposal company.

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CONDITIONS OF USE: The information in this database is intended to supplement, not substitute for, the expertise and judgment of healthcare professionals. The information is not intended to cover all possible uses, directions, precautions, drug interactions or adverse effects, nor should it be construed to indicate that use of a particular drug is safe, appropriate or effective for you or anyone else. A healthcare professional should be consulted before taking any drug, changing any diet or commencing or discontinuing any course of treatment.