Rilzabrutinib Tablets

What is this medication?

RILZABRUTINIB (RIL za BROO ti nib) treats low levels of platelets in your body caused by immune thrombocytopenia (ITP). It works by increasing the amount of platelets in your blood. This lowers the risk of bleeding.

This medicine may be used for other purposes; ask your health care provider or pharmacist if you have questions.

COMMON BRAND NAME(S): WAYRILZ

What should I tell my care team before I take this medication?

They need to know if you have any of these conditions:

• Kidney disease
• Liver disease
• An unusual or allergic reaction to rilzabrutinib, other medications, foods, dyes, or preservatives
• Pregnant or trying to get pregnant
• Breastfeeding

How should I use this medication?

Take this medication by mouth with water. Take it as directed on the prescription label at the same time every day. Do not cut, crush, or chew this medication. Swallow the tablets whole. You can take it with or without food. If it upsets your stomach, take it with food. Keep taking it unless your care team tells you to stop.

Take antacids and H2 blockers at a different time of day than this medication. Take them at least 2 hours after this medication.

Talk to your care team about the use of this medication in children. Special care may be needed.

Overdosage: If you think you have taken too much of this medicine contact a poison control center or emergency room at once.

NOTE: This medicine is only for you. Do not share this medicine with others.

What if I miss a dose?

If you miss a dose, take it as soon as you can. If it is less than 2 hours before your next dose, skip the missed dose. Take your next dose at the normal time. Do not take double or extra doses.

What may interact with this medication?

• Antacids
• Grapefruit, starfruit, and Seville oranges
• H2 blockers, such as cimetidine, famotidine, nizatidine
• PPIs, such as lansoprazole, omeprazole, rabeprazole
• Supplements, such as St. John's wort

This medication may affect how other medications work, and other medications may affect the way this medication works. Talk with your care team about all the medications you take. They may suggest changes to your treatment plan to lower the risk of side effects and to make sure your medications work as intended.

This list may not describe all possible interactions. Give your health care provider a list of all the medicines, herbs, non-prescription drugs, or dietary supplements you use. Also tell them if you smoke, drink alcohol, or use illegal drugs. Some items may interact with your medicine.

What should I watch for while using this medication?

Visit your care team for regular checks on your progress. Tell your care team if your symptoms do not start to get better or if they get worse.

Talk to your care team if you may be pregnant. Serious fetal side effects can occur if you take this medication during pregnancy and for 1 week after the last dose. You will need a negative pregnancy test before starting this medication. Contraception is recommended while taking this medication and for 1 week after the last dose. Your care team can help you find the option that works for you.

Do not breastfeed while taking this medication and for 1 week after the last dose.

What side effects may I notice from receiving this medication?

Side effects that you should report to your care team as soon as possible:

• Allergic reactions—skin rash, itching, hives, swelling of the face, lips, tongue, or throat
• Infection—fever, chills, cough, sore throat, wounds that don't heal, pain or trouble when passing urine, general feeling of discomfort or being unwell
• Liver injury—right upper belly pain, loss of appetite, nausea, light-colored stool, dark yellow or brown urine, yellowing skin or eyes, unusual weakness or fatigue

Side effects that usually do not require medical attention (report these to your care team if they continue or are bothersome):

• Diarrhea
• Headache
• Nausea
• Stomach pain

This list may not describe all possible side effects. Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088.

Where should I keep my medication?

Keep out of the reach of children and pets.

Store at room temperature between 20 and 25 degrees C (68 and 77 degrees F). Keep this medication in the original container until you are ready to take it. Protect from light and moisture. Keep the container tightly closed. Get rid of any unused medication after the expiration date.

To get rid of medications that are no longer needed or have expired:

• Take the medication to a take-back program. Check with your pharmacy or law enforcement to find a location.
• If you cannot return the medication, check the label or package insert to see if the medication should be thrown out in the garbage or flushed down the toilet. If you are not sure, ask your care team. If it is safe to put it in the trash, empty the medication out of the container. Mix it with cat litter, dirt, coffee grounds, or another unwanted substance. Seal the mixture in a bag or container. Put it in the trash.

NOTE: This sheet is a summary. It may not cover all possible information. If you have questions about this medicine, talk to your doctor, pharmacist, or health care provider.