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We're here to help. Please call 1-844-READY41 (1-844-732-3941) to speak with a HARVONI Educator, Monday through Friday from 9AM to 9PM Eastern Time.

HARVONI is a prescription medicine used with or without ribavirin to treat chronic (lasting a long time) hepatitis C genotype 1, 4, 5 or 6 infection. It is not known if HARVONI is safe and effective in children under 18 years of age.

Important Safety Information

What should I tell my healthcare provider before taking HARVONI?

  • If you have: liver problems other than hepatitis C infection, or have had a liver transplant; severe kidney problems or are on dialysis; HIV, or any other medical condition; or if you are pregnant or breastfeeding or plan to become pregnant or breastfeed. It is not known if HARVONI will harm your unborn baby or pass into your breast milk. If you take HARVONI with ribavirin, you should also read the ribavirin Medication Guide for important pregnancy-related information.
  • Tell your healthcare provider and pharmacist about all the medicines you take, including prescription and over-the-counter medicines, vitamins, and herbal supplements. HARVONI and certain other medicines may affect each other, or may cause side effects. Tell your healthcare provider if you take any medicines containing tenofovir disoproxil fumarate (ATRIPLA®, COMPLERA®, STRIBILD®, TRUVADA®, VIREAD®).

What are the possible side effects of HARVONI?

  • HARVONI, when taken with amiodarone (Cordarone®, Nexterone®, Pacerone®), a medicine used to treat certain heart problems, may cause serious side effects, including slow heart rate, which in some cases has led to death or the need for a pacemaker. Get medical help right away if you take amiodarone with HARVONI and get any of the following symptoms: fainting or near-fainting, dizziness or lightheadedness, not feeling well, weakness, extreme tiredness, shortness of breath, chest pains, confusion, or memory problems.
  • The most common side effects of HARVONI include tiredness, headache and weakness.