Adult Medication

Brand Names: US

Incivek [DSC]

Brand Names: Canada

Incivek [DSC]


  • This drug can cause very bad and sometimes deadly skin side effects when taken with peginterferon alfa and ribavirin. Talk to your doctor about any skin changes you may have.

What is this drug used for?

  • It is used to treat hepatitis C infection.

What do I need to tell my doctor BEFORE I take this drug?

  • If you have an allergy to telaprevir or any other part of this drug.
  • If you are allergic to any drugs like this one, any other drugs, foods, or other substances. Tell your doctor about the allergy and what signs you had, like rash; hives; itching; shortness of breath; wheezing; cough; swelling of face, lips, tongue, or throat; or any other signs.
  • If you are not taking ribavirin or peginterferon alfa.
  • If you have liver disease.
  • If you take any drugs (prescription, OTC, natural products, vitamins) that must not be taken with this drug, like certain drugs that are used for high cholesterol, seizures, migraines, or rifampin. There are many drugs that must not be taken with this drug.
  • If you are of childbearing age, but are not using 2 kinds of birth control or if you are planning to get pregnant during your care or within 6 months after care has ended.
  • If you are a man with a sex partner who is pregnant or plans on getting pregnant at any time while you are being treated or within 6 months after your care has ended.
  • If you are pregnant or may be pregnant. Do not take this drug if you are pregnant.
This is not a list of all drugs or health problems that interact with this drug.
Tell your doctor and pharmacist about all of your drugs (prescription or OTC, natural products, vitamins) and health problems. You must check to make sure that it is safe for you to take this drug with all of your drugs and health problems. Do not start, stop, or change the dose of any drug without checking with your doctor.

What are some things I need to know or do while I take this drug?

  • Tell all of your health care providers that you take this drug. This includes your doctors, nurses, pharmacists, and dentists.
  • You may bleed more easily. Be careful and avoid injury. Use a soft toothbrush and an electric razor.
  • Have blood work checked as you have been told by the doctor. Talk with the doctor.
  • Do not take St John’s wort with this drug. This drug may not work as well.
  • This drug does not stop the spread of diseases like HIV or hepatitis that are passed through blood or having sex. Do not have any kind of sex without using a latex or polyurethane condom. Do not share needles or other things like toothbrushes or razors. Talk with your doctor.
  • This drug may cause harm to the unborn baby if you take it while you are pregnant.
  • Use 2 kinds of birth control that you can trust while using this drug and for 6 months after stopping this drug.
  • If you are a man and have sex with a female who could get pregnant, protect her from pregnancy during care and for 6 months after care ends. Use birth control that you can trust.
  • Do not use a hormone-related kind of birth control.
  • Tell your doctor if you are breast-feeding. You will need to talk about any risks to your baby.

What are some side effects that I need to call my doctor about right away?

WARNING/CAUTION: Even though it may be rare, some people may have very bad and sometimes deadly side effects when taking a drug. Tell your doctor or get medical help right away if you have any of the following signs or symptoms that may be related to a very bad side effect:
  • Signs of an allergic reaction, like rash; hives; itching; red, swollen, blistered, or peeling skin with or without fever; wheezing; tightness in the chest or throat; trouble breathing or talking; unusual hoarseness; or swelling of the mouth, face, lips, tongue, or throat.
  • Signs of fluid and electrolyte problems like mood changes, confusion, muscle pain or weakness, a heartbeat that does not feel normal, very bad dizziness or passing out, fast heartbeat, more thirst, seizures, feeling very tired or weak, not hungry, unable to pass urine or change in the amount of urine produced, dry mouth, dry eyes, or very bad upset stomach or throwing up.
  • Shortness of breath.
  • Feeling very tired or weak.
  • A very bad skin reaction (Stevens-Johnson syndrome/toxic epidermal necrolysis) may happen. It can cause very bad health problems that may not go away, and sometimes death. Get medical help right away if you have signs like red, swollen, blistered, or peeling skin (with or without fever); red or irritated eyes; or sores in your mouth, throat, nose, or eyes.

What are some other side effects of this drug?

All drugs may cause side effects. However, many people have no side effects or only have minor side effects. Call your doctor or get medical help if any of these side effects or any other side effects bother you or do not go away:
  • Feeling tired or weak.
  • Feeling sleepy.
  • Bad taste in your mouth.
  • Itching.
  • Upset stomach or throwing up.
  • Loose stools (diarrhea).
  • Anal irritation.
These are not all of the side effects that may occur. If you have questions about side effects, call your doctor. Call your doctor for medical advice about side effects.
You may report side effects to your national health agency.

How is this drug best taken?

Use this drug as ordered by your doctor. Read all information given to you. Follow all instructions closely.
  • To gain the most benefit, do not miss doses.
  • Take this drug at the same time of day.
  • Keep taking this drug as you have been told by your doctor or other health care provider, even if you feel well.
  • Take with a high-fat meal.
  • Swallow whole. Do not chew, break, or crush.
  • Drink lots of noncaffeine liquids unless told to drink less liquid by your doctor.

What do I do if I miss a dose?

  • If it has been 6 hours or more since the missed dose, skip the missed dose and go back to your normal time.
  • If it has been less than 6 hours since a normal dose, take a missed dose as soon as you think about it and go back to your normal time.
  • Do not use 2 doses or extra doses.

How do I store and/or throw out this drug?

  • Store at room temperature.
  • Store in a dry place. Do not store in a bathroom.
  • Keep all drugs in a safe place. Keep all drugs out of the reach of children and pets.
  • Check with your pharmacist about how to throw out unused drugs.

General drug facts

  • If your symptoms or health problems do not get better or if they become worse, call your doctor.
  • Do not share your drugs with others and do not take anyone else’s drugs.
  • Keep a list of all your drugs (prescription, natural products, vitamins, OTC) with you. Give this list to your doctor.
  • Talk with the doctor before starting any new drug, including prescription or OTC, natural products, or vitamins.
  • Some drugs may have another patient information leaflet. If you have any questions about this drug, please talk with your doctor, nurse, pharmacist, or other health care provider.
  • If you think there has been an overdose, call your poison control center or get medical care right away. Be ready to tell or show what was taken, how much, and when it happened.

Consumer Information Use and Disclaimer

This information should not be used to decide whether or not to take this medicine or any other medicine. Only the healthcare provider has the knowledge and training to decide which medicines are right for a specific patient. This information does not endorse any medicine as safe, effective, or approved for treating any patient or health condition. This is only a brief summary of general information about this medicine. It does NOT include all information about the possible uses, directions, warnings, precautions, interactions, adverse effects, or risks that may apply to this medicine. This information is not specific medical advice and does not replace information you receive from the healthcare provider. You must talk with the healthcare provider for complete information about the risks and benefits of using this medicine.

Last Reviewed Date



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