Skip to Content


Generic Name: simeprevir (sim E pre vir)
Brand Names: Olysio

What is Olysio?

Olysio (simeprevir) is an antiviral medicine that prevents certain viruses from multiplying in your body.

Olysio is used in combination with peginterferon alfa (Pegasys, PegIntron) and ribavirin (Copegus, Moderiba, Rebetol, Ribasphere), or with sofosbuvir (Sovaldi) to treat hepatitis C genotype 1 or 4 in adults.

Read the medication guide or patient instructions provided with each medication in your combination therapy. Do not change your doses or medication schedule without your doctor's advice. Every person with hepatitis C should remain under the care of a doctor.

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

Important information

Olysio is used in combination with other medications called peginterferon alfa and ribavirin.

Read the medication guide or patient instructions provided with each medication in your combination therapy. Do not change your doses or medication schedule without your doctor's advice.

Do not use Olysio with peginterferon alfa and ribavirin if you are pregnant, or if you are a man and your female sexual partner is pregnant. Ribavirin can cause birth defects or death in an unborn baby.

Before taking this medicine

You should not use Olysio if you are allergic to simeprevir.

Your doctor will perform blood tests to make sure simeprevir is the right treatment for your condition.

To make sure Olysio is safe for you, tell your doctor if you have:

  • liver problems other than hepatitis, or if you have had a liver transplant;

  • kidney disease (or if you are on dialysis);

  • an allergy to sulfa drugs;

  • if you also take amiodarone (Cordarone, Pacerone);

  • if you are East Asian descent;

  • if you are receiving phototherapy (light therapy); or

  • if you have taken simeprevir, boceprevir (Victrelis), or telaprevir (Incivek) in the past and they were not effective.

Olysio is sometimes used in combination with ribavirin. Ribavirin can cause birth defects or death in an unborn baby. You may need to have a negative pregnancy test before using these medications together, and every month during your treatment.

  • If you are a woman, do not use ribavirin if you are pregnant.

  • If you are a man, do not use ribavirin if your sexual partner is pregnant. An unborn baby could also be harmed if a man fathers the child while he is taking ribavirin.

  • Use at least 2 effective forms of birth control while either sexual partner is using ribavirin. Keep using 2 forms of birth control for at least 6 months after treatment ends. Tell your doctor right away if a pregnancy occurs while either the mother or the father is using Olysio with peginterferon alfa and ribavirin.

It is not known whether simeprevir passes into breast milk or if it could harm a nursing baby. You should not breast-feed while using this medicine.

Olysio is not approved for use by anyone younger than 18 years old.

How should I take Olysio?

Take Olysio exactly as prescribed by your doctor. Follow all directions on your prescription label. Do not take this medicine in larger or smaller amounts or for longer than recommended.

Olysio must be given in combination with other antiviral medications and it should not be used alone.

Take with food.

Do not crush, chew, break, or open a Olysio capsule. Swallow the capsule whole.

While using simeprevir, you may need frequent blood tests.

You should not stop using this medicine unless your doctor tells you to.

Store Olysio at room temperature away from moisture, heat, and light.

See also: Dosage Information (in more detail)

What happens if I miss a dose?

Take the missed dose as soon as you remember. If you are more than 12 hours late, skip the missed dose. Do not take extra medicine to make up the missed dose.

What happens if I overdose?

Seek emergency medical attention or call the Poison Help line at 1-800-222-1222.

What should I avoid while taking Olysio?

Avoid exposure to sunlight or tanning beds. Olysio combination treatment can make your skin more sensitive to sunlight, especially during the first 4 weeks of treatment. This may cause a severe sunburn or skin rash. Wear a hat, sunglasses, and protective clothing and use sunscreen (SPF 30 or higher) when you are outdoors.

Avoid taking an herbal supplement containing St. John's wort at the same time you are taking Olysio.

Olysio side effects

Get emergency medical help if you have signs of an allergic reaction to Olysio: hives; difficult breathing; swelling of your face, lips, tongue, or throat.

Read all of your medication guides to learn about possible side effects of other medications you use in combination with Olysio. Ask your doctor or pharmacist if you have any questions.

Call your doctor at once if you have:

  • new or worsening liver symptoms, such as nausea, tiredness, loss of appetite, clay-colored stools, or yellowing of your skin or eyes;

  • severe skin rash (redness, swelling, burning, blistering);

  • eye redness or puffiness;

  • mouth sores;

  • shortness of breath; or

  • (if you also take amiodarone) - confusion, chest pain, extreme weakness or drowsiness, feeling like you might pass out.

Your treatment with Olysio may be permanently discontinued if you have certain side effects.

Common Olysio side effects may include:

  • mild itching or rash;

  • nausea; or

  • headache.

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.

See also: Side effects (in more detail)

What other drugs will affect Olysio?

Many drugs can interact with combination treatment. Not all possible interactions are listed here. Tell your doctor about all your current medicines and any you start or stop using, especially:

  • an antibiotic medicine, including medicine to treat tuberculosis;

  • antifungal medication;

  • heart or blood pressure medicine;

  • HIV or AIDS medications;

  • seizure medication; or

  • "statin" medication to treat high cholesterol.

This list is not complete and many other drugs can interact with simeprevir. This includes prescription and over-the-counter medicines, vitamins, and herbal products. Give a list of all your medicines to any healthcare provider who treats you.

Where can I get more information?

  • Your pharmacist can provide more information about Olysio.
  • Remember, keep this and all other medicines out of the reach of children, never share your medicines with others, and use Olysio only for the indication prescribed.
  • Disclaimer: 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 1996-2016 Cerner Multum, Inc. Version: 1.05. Revision Date: 2016-03-07, 10:27:15 AM.