Fortunately, the list of medications and supplements that may interact with those used to treat hepatitis C virus (HCV) infection is relatively short. However, before starting a new medication, it’s a good idea to review everything you are taking. If your review includes supplements, over-the-counter medicines, recreational drugs and food, you’ll get a more complete assessment.

Before starting treatment, read the information that accompanies the drug prescribed for your treatment. provides a list of common drugs known to interact with HCV antivirals. The University of Liverpool HEP Drug Interaction checker is available at If you are looking for information about everything you are taking, many good interaction checkers are available online. The Canadian site DrugBank is especially impressive. 

If you are interested in learning some of the ways that drugs may interact with one another, click here. It can be useful to understand the various ways substances interact with one another, so you can see why it may be all right to take a drug at a certain time even if it may interact with another drug you are taking. Your medical provider and pharmacist can help you sort this out.