MAVENCLAD contains the active ingredient cladribine, a nucleoside metabolic inhibitor in the form of a crystalline powder. It is available as 10 mg tablets intended for oral administration. Key inactive ingredients include hydroxypropyl betadex, magnesium stearate, and sorbitol.

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. This medication is taken in cycles. There will be days you do not take it. Talk to your care team if you have questions about when to take your medication. It is very important to follow the exact schedule. Taking it more often than directed can cause serious side effects. Take other medications at a different time of day than this medication. Talk to your care team if you have questions. Handling this medication may be harmful. Wash your hands before and after touching the medication or the bottle. Talk to your care team about how to handle this medication. Special instructions may apply. A special MedGuide will be given to you by the pharmacist with each prescription and refill. Be sure to read this information carefully each time. Talk to your care team about the use of this medication in children. It is not approved for use in children.

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 almost time for your next dose, take only that dose. Do not take double or extra doses.

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. Protect from 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 medication take-back program. Check with your pharmacy or law enforcement to find a location. -If you cannot return the medication, ask your pharmacist or care team how to get rid of this medication safely.

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.

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 -Dizziness, loss of balance or coordination, confusion or trouble speaking -Heart failure—shortness of breath, swelling of the ankles, feet, or hands, sudden weight gain, unusual weakness or fatigue -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): -Back pain -Headache -Nausea -Runny or stuffy nose -Sore throat

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.

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

They need to know if you have any of these conditions: -Cancer -Heart failure -HIV or AIDs -Immune system problems -Infection, such as tuberculosis (TB) or other bacterial, fungal, or viral infections -Kidney disease -Liver disease -Recent or upcoming vaccine -An unusual or allergic reaction to cladribine, other medications, foods, dyes, or preservatives -If you or your partner are pregnant or trying to get pregnant -Breastfeeding

What may interact with this medication?

Do not take this medication with any of the following: -Live virus vaccines This medication may also interact with the following: -Certain antivirals for HIV or hepatitis -Medications that lower your chance of fighting infection Other medications may affect the way this medication works. Talk with your care team about all of 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. You may need blood work done while you are taking this medication. Talk to your care team about your risk of cancer. You may be more at risk for certain types of cancer if you take this medication. This medication may increase your risk of getting an infection. Call your care team for advice if you get a fever, chills, sore throat, or other symptoms of a cold or flu. Do not treat yourself. Try to avoid being around people who are sick. Talk to your care team if you or your partner may be pregnant. Serious birth defects can occur if you take this medication during pregnancy and for 6 months after the last dose. You will need a negative pregnancy test before starting this medication. Contraception is recommended while taking this medication and for 6 months after the last dose. Your care team can help you find the option that works for you. If your partner can get pregnant, use a condom during sex while taking this medication and for 6 months after the last dose. Do not breastfeed while taking this medication and for 10 days after the last dose.

What are the most serious risks of this medication?

Some people have developed cancer, such as leukemia or skin cancer, after taking this medication for a long time. Your care team will monitor you for cancer. To lower your risk of skin cancer, keep out of the sun. If you cannot avoid being in the sun, wear protective clothing and sunscreen. Report any new or unusual skin changes. If you can become pregnant, you will need a test to make sure you are not pregnant before starting this medication. You must use contraception while taking this medication. You may need to keep using contraception even after you stop taking the medication. This depends on the medication. It is important to talk to your care team about how long to use contraception. Call your care team right away if you think you may be pregnant, have unprotected sex, or if you think your contraception did not work.