entrectinib

What is the most important information I should know about entrectinib?

What is entrectinib?

Entrectinib is used in adults to treat non-small cell lung cancer that has spread to other parts of the body (metastatic).

Entrectinib is also used in adults and children at least 12 years old who have solid tumors that have spread or cannot be safely removed with surgery, or when other treatments have failed or are not safe options.

Entrectinib is used only if your cancer has a specific abnormal gene. Your doctor will test you for this gene.

Entrectinib may also be used for purposes not listed in this medication guide.

What should I discuss with my healthcare provider before taking entrectinib?

Tell your doctor if you have ever had:

• gout;
• heart problems;
• long QT syndrome (in you or a family member);
• liver or kidney disease;
• a nervous system disorder; or
• problems with your eyes or vision.

You may need to have a negative pregnancy test before starting this treatment.

• If you are a woman, do not use entrectinib if you are pregnant. Use effective birth control to prevent pregnancy while you are using this medicine and for at least 5 weeks after your last dose.
• If you are a man, use effective birth control if your sex partner is able to get pregnant. Keep using birth control for at least 3 months after your last dose.
• Tell your doctor right away if a pregnancy occurs while either the mother or the father is using entrectinib.

How should I take entrectinib?

Follow all directions on your prescription label and read all medication guides or instruction sheets. Your doctor may occasionally change your dose. Use the medicine exactly as directed.

You may take entrectinib with or without food.

If you vomit shortly after taking entrectinib, take another dose.

Do not change your dose or stop taking entrectinib without your doctor's advice.

What happens if I miss a dose?

Use the medicine as soon as you can, but skip the missed dose if your next dose is due in less than 12 hours. Do not use two doses at one time.

What happens if I overdose?

What should I avoid while taking entrectinib?

Grapefruit may interact with entrectinib and lead to unwanted side effects. Avoid the use of grapefruit products.

What are the possible side effects of entrectinib?

• bone pain or problems moving;
• fast or pounding heartbeats, fluttering in your chest, shortness of breath, and sudden dizziness (like you might pass out);
• nausea, vomiting, loss of appetite, right-sided upper stomach pain;
• swelling in your lower legs, rapid weight gain;
• cough, wheezing, shortness of breath, trouble breathing while lying down;
• confusion, hallucinations, problems with memory or concentration;
• dizziness, mood changes, trouble sleeping; or
• blurred vision, double vision, increased sensitivity to light, or seeing flashes of light or "floaters" in your vision.

Your cancer treatments may be delayed or permanently discontinued if you have certain side effects.

Common side effects may include:

• changes in your mental status;
• vision changes;
• nausea, vomiting, diarrhea, constipation;
• fever, cough;
• dizziness, tiredness;
• weight gain, swelling;
• muscle or joint pain;
• trouble breathing; or
• changes in your sense of taste or touch.

This is not a complete list of side effects and others may occur. Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088.

What other drugs will affect entrectinib?

Sometimes it is not safe to use certain medications at the same time. Some drugs can affect your blood levels of other drugs you take, which may increase side effects or make the medications less effective.

Other drugs may affect entrectinib, including prescription and over-the-counter medicines, vitamins, and herbal products. Tell your doctor about all your current medicines and any medicine you start or stop using.

Where can I get more information?

Your pharmacist can provide more information about entrectinib.

Remember, keep this and all other medicines out of the reach of children, never share your medicines with others, and use this medication only for the indication prescribed.

Every effort has been made to ensure that the information provided by Cerner Multum, Inc. ('Multum') is accurate, up-to-date, and complete, but no guarantee is made to that effect. Drug information contained herein may be time sensitive. Multum information has been compiled for use by healthcare practitioners and consumers in the United States and therefore Multum does not warrant that uses outside of the United States are appropriate, unless specifically indicated otherwise. Multum's drug information does not endorse drugs, diagnose patients or recommend therapy. Multum's drug information is an informational resource designed to assist licensed healthcare practitioners in caring for their patients and/or to serve consumers viewing this service as a supplement to, and not a substitute for, the expertise, skill, knowledge and judgment of healthcare practitioners. The absence of a warning for a given drug or drug combination in no way should be construed to indicate that the drug or drug combination is safe, effective or appropriate for any given patient. Multum does not assume any responsibility for any aspect of healthcare administered with the aid of information Multum provides. The information contained herein is not intended to cover all possible uses, directions, precautions, warnings, drug interactions, allergic reactions, or adverse effects. If you have questions about the drugs you are taking, check with your doctor, nurse or pharmacist.

Copyright 1996-2023 Cerner Multum, Inc. Version: 1.01. Revision date: 10/29/2019.