Taletrectinib Capsules

What is this medication?

TALETRECTINIB (TA le TREK tin ib) treats lung 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): IBTROZI

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

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

  • Gout
  • Heart disease
  • Irregular heartbeat or rhythm
  • Liver disease
  • Lung or breathing problems, other than lung cancer
  • An unusual or allergic reaction to taletrectinib, 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 capsules whole. Take it on an empty stomach, at least 2 hours before or 2 hours after 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.

Do not take this medication with foods or drinks that contain grapefruit.

Take antacids at a different time of day than this medication. Take antacids 2 hours before or 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, skip it. Take your 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 normal time the next day.

What may interact with this medication?

Do not take this medication with any of the following:

  • Cisapride
  • Dronedarone
  • Ketoconazole
  • Pimozide
  • Thioridazine

This medication may also interact with the following:

  • Antacids
  • Grapefruit or grapefruit juice
  • Stomach acid blockers, such as omeprazole or famotidine
  • Some medications for fungal infections, such as fluconazole, itraconazole, posaconazole
  • Other medications that cause heart rhythm changes

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. Report any side effects. Continue your course of treatment even if you have side effects unless your care team tells you to stop.

This medication may make you feel generally unwell. This is not uncommon as chemotherapy can affect healthy cells as well as cancer cells. Report any side effects. Continue your course of treatment even though you feel ill unless your care team tells you to stop.

This medication can make you more sensitive to the sun during treatment and for 5 days after the last dose. Keep out of the sun. If you cannot avoid being in the sun, wear protective clothing and sunscreen. Do not use sun lamps, tanning beds, or tanning booths.

This medication may increase your risk of bone fractures. Tell your care team if you have pain, swelling, or trouble moving a part of your body like you usually can.

Talk to your care team if you or your partner may be pregnant. Serious fetal side effects can occur if you take this medication during pregnancy. You will need a negative pregnancy test before starting this medication. Contraception is recommended while taking this medication and for 3 weeks 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 3 weeks after the last dose.

Do not breastfeed while taking this medication and for 3 weeks 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
  • Dry cough, shortness of breath or trouble breathing
  • Heart rhythm changes—fast or irregular heartbeat, dizziness, feeling faint or lightheaded, chest pain, trouble breathing
  • High uric acid level—severe pain, redness, warmth, or swelling in joints, pain or trouble passing urine, pain in the lower back or sides
  • 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
  • Muscle injury—unusual weakness or fatigue, muscle pain, dark yellow or brown urine, decrease in amount of urine

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

  • Constipation
  • Diarrhea
  • Dizziness
  • Nausea
  • Skin reactions on sun-exposed areas
  • 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 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.

© 2026 Elsevier/Gold Standard (2025-06-19 00:00:00)

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