Firstly you should understand that there is ‘Real’ Harvoni that costs around $80,000.
Harvoni is a combination of Sofosbuvir 400 mg and Ledipasvir 90 mg in one tablet. While Generic Harvoni also have combination of Sofosbuvir 400 mg and Ledipasvir 90 mg in one tablet.

Gilead Sciences the manufacturer of Harvoni gave the license and patent to several Indian pharmaceutical companies to manufacture and distribute generic Harvoni. While this Indian companies  pays royalty to Gilead Sciences and in exchange for that royalty Gilead Sciences has provided them with all the intellectual property and manufacturing technology to make Harvoni. So the generics are identical to Harvoni.

Generic Harvoni Brand Names: 
Natco Pharma and Hetero Drugs are the only manufacturers of generic Harvoni in India.  Although several companies like Cipla, Mylan, Dr. Reddys and others have their own brand labels placed on the manufactured product. Bottom line is when you buy generic Harvoni online in India from us you’re essentially getting a Gilead Sciences licensed product.

Why India? Since 1983, India has been mass producing generic pharmaceuticals for the world. In fact, India supplies 50% of all generics to the American people.  India was the first country to manufacture large scale affordable HIV drugs for the African people and HIV populations at large.  Again, India takes the lead in mass producing hepatitis C drugs for North America, Latin America, Europe, Africa and Asia.

All generic versions of Harvoni , Sovaldi and Epclusa are manufactured under the license and supervision of Gilead Sciences and the FDA.