Hepatitis C Home > INCIVEK Side Effects

Fatigue, itching, and nausea are some of the possible side effects of INCIVEK. Although most reactions to this hepatitis C medication tend to be minor, there are serious problems that can occur during treatment. Contact your healthcare provider right away if you develop unusual bruising, intense joint pain, or other potentially serious problems.

An Introduction to INCIVEK Side Effects

Just like any medicine, INCIVEK® (telaprevir) can cause side effects. However, not everyone who takes the medication will have problems. In fact, most people tolerate it quite well. If side effects do occur, in most cases, they are minor and either require no treatment or are treated easily by you or your healthcare provider.
(This article covers many, but not all, of the possible side effects with INCIVEK. Your healthcare provider can discuss a more complete list with you.)

Common Side Effects of INCIVEK

INCIVEK has been studied extensively in clinical trials. In these studies, the side effects that occurred in a group of people taking INCIVEK, peginterferon alfa, and ribavirin were documented and then compared to the side effects that occurred in a similar group of people taking peginterferon alfa and ribavirin.
In these studies, the most common bothersome (but usually not dangerous) INCIVEK side effects included:
  • Fatigue -- in up to 56 percent of people
  • Mild skin rash -- up to 56 percent
  • Itching -- up to 47 percent
  • Nausea -- up to 39 percent
  • Diarrhea -- up to 26 percent
  • Vomiting -- up to 13 percent
  • Hemorrhoids -- up to 12 percent
  • Anal itching, burning, and discomfort -- up to 11 percent
  • A bad taste in the mouth -- up to 10 percent.
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Last reviewed by: Kristi Monson, PharmD;
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