Inavolisib Tablets

What is this medication?

INAVOLISIB (IN a voe LIS ib) treats breast cancer. It works by blocking a protein that causes cancer cells to grow and multiply. This helps to slow or stop the spread of cancer cells.

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

COMMON BRAND NAME(S): Itovebi

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

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

• Diabetes or high blood sugar levels (prediabetes)
• Kidney disease
• An unusual or allergic reaction to inavolisib, other medications, foods, dyes, or preservatives
• If you or your partner are pregnant or trying to get pregnant
• Breastfeeding

How should I use this medication?

Take this medication by mouth. 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. Your care team may change your dose or tell you to stop taking this medication if you get side effects. Do not change your dose or stop taking it unless your care team tells you to.

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 unless it is more than 9 hours late. If it is more than 9 hours late, skip the missed dose. Take the next dose at the normal time. Do not take double or extra doses.

If you vomit after taking your dose, do not take another dose. Take your next dose at your usual time the next day.

What may interact with this medication?

Interactions are not expected.

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?

Your condition will be monitored carefully while you are receiving this medication. Report any side effects. Continue your course of treatment even if you have side effects unless your care team tells you to stop.

You may need blood work done while you are taking this medication.

This medication may increase blood sugar. The risk may be higher in patients who already have diabetes. Ask your care team what you can do to lower your risk of diabetes while taking 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.

Avoid taking medications that contain aspirin, acetaminophen, ibuprofen, naproxen, or ketoprofen unless instructed by your care team. These medications may hide a fever.

Be careful brushing or flossing your teeth or using a toothpick because you may get an infection or bleed more easily. If you have any dental work done, tell your dentist you are receiving this medication.

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 1 week after the last dose. You will need a negative pregnancy test before starting this medication. Estrogen and progestin hormones may not work as well while you are taking 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.

If your partner can get pregnant, use a condom during sex while taking this medication and for 1 week after the last dose.

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

This medication may cause infertility. Talk to your care team if you are concerned about your fertility.

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
• Diarrhea
• High blood sugar (hyperglycemia)—increased thirst or amount of urine, unusual weakness or fatigue, blurry vision
• Infection—fever, chills, cough, sore throat, wounds that don't heal, pain or trouble when passing urine, general feeling of discomfort or being unwell
• Low red blood cell level—unusual weakness or fatigue, dizziness, headache, trouble breathing
• Pain, redness, or swelling with sores inside the mouth or throat
• Unusual bruising or bleeding

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

• Dry skin
• Fatigue
• Hair loss
• Headache
• Loss of appetite with weight loss
• Nausea
• Vomiting

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). 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, 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 the medication with cat litter, dirt, coffee grounds, or other 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.