Epclusa and Harvoni are both direct-acting antiviral treatments for chronic hepatitis C, and both are built on the same core drug — sofosbuvir. What separates them is the second ingredient, and that difference decides which genotypes each one covers. This is a factual comparison, not a recommendation.
The one ingredient they share, and the one they do not
Both contain sofosbuvir, an NS5B polymerase inhibitor. Epclusa pairs it with velpatasvir; Harvoni pairs it with ledipasvir. Both partners are NS5A inhibitors, but they are not the same molecule and they do not have the same reach across hepatitis C genotypes.
Genotype coverage is the practical difference
Epclusa is pan-genotypic — it is used across hepatitis C genotypes 1 to 6. Harvoni is used mainly in genotype 1, with use in certain other genotypes depending on the labelling in your country. In practice this is why genotype testing comes first: the test result narrows which regimens are on the table before cost enters the conversation at all.
Dosing and course length
Both are a single tablet taken once daily, and both run for a defined course rather than indefinitely — commonly 12 weeks. The exact length is set by your specialist and depends on genotype, whether you have been treated before, and whether you have cirrhosis. Course length is a clinical decision, not a budget one.
Side by side
| Epclusa | Harvoni | |
|---|---|---|
| Active ingredients | Sofosbuvir + velpatasvir | Sofosbuvir + ledipasvir |
| Strengths | 400 mg / 100 mg | 400 mg / 90 mg |
| Genotype coverage | Pan-genotypic (1–6) | Mainly genotype 1, and others per local labelling |
| Dosing | One tablet daily | One tablet daily |
| Typical course | 12 weeks | 12 weeks |
| Originator | Gilead Sciences | Gilead Sciences |
| Prescription required | Yes | Yes |
Where a third option comes in
Not every hepatitis C regimen is sofosbuvir-based. Glecaprevir/pibrentasvir (branded Mavyret or Maviret) contains no sofosbuvir at all, is also pan-genotypic, and is commonly an 8-week course taken as three tablets daily. It appears in different clinical situations rather than as a straight substitute for either medicine above — another reason the choice belongs with a specialist who has your test results.
Generic options for both
Both are available as generics containing the same active ingredients as their branded originals, produced by licensed pharmaceutical manufacturers, typically at a small fraction of the originator price. See generic Epclusa (sofosbuvir/velpatasvir) and generic Harvoni (sofosbuvir/ledipasvir) for strengths and current pricing, or read more on our hepatitis information hub. Both are prescription-only; every order is reviewed by a licensed pharmacist against a valid prescription before dispatch. Which one suits you is a decision for your prescriber, not a decision to make from an article. Used as prescribed by a licensed medical professional.
Frequently asked questions
What is the difference between Epclusa and Harvoni?
Both contain sofosbuvir. They differ in the second ingredient: Epclusa pairs it with velpatasvir and Harvoni with ledipasvir. That difference is what changes their genotype coverage — Epclusa is pan-genotypic, meaning it is used across hepatitis C genotypes 1 to 6, while Harvoni is used mainly in genotype 1 and certain others. Which applies to you depends on your genotype test.
Is one better than the other?
That is not a question an article can answer for you, and we do not try. They are different medicines licensed for overlapping but not identical situations. Your specialist chooses between them based on your genotype, whether you have been treated before, whether you have cirrhosis, and your liver and kidney assessment.
Are both taken the same way?
Both are a single tablet once daily, and both are given for a defined course rather than indefinitely — commonly 12 weeks, though the length is set by your specialist and varies with your circumstances.
Which is cheaper as a generic?
Both have generic versions containing the same active ingredients as their branded originals, and both cost a small fraction of the originator price. Exact figures depend on the manufacturer, the course length prescribed and your destination — see the individual pages for current pricing rather than assuming one is always lower.
Do I need a genotype test before either?
Genotype testing and liver assessment normally precede any hepatitis C treatment decision, and they are arranged through your healthcare provider. That testing is part of what determines which regimen and which course length apply to you.
This article is general information, not medical advice. It compares licensed products on published characteristics; it does not recommend one over another. Prices are indicative and vary by country, pack size, insurance and over time. Always use any medicine as prescribed by a licensed medical professional.
Hari Ramalingam is a licensed clinical pharmacist with 14 years of experience. He holds a B.Pharm from Dr. M.G.R. Medical University. At OnlineMeds, he reviews medicine and health content to help ensure it is accurate, evidence-based, and easy to understand.