Hepcvel is the Generic form of Epclusa.
Different countries are now manufacturing generic forms of the Originater medications.
I believe the one you mentioned is Manufactured in India.
There has been studies done on some of the Generics and for the most part it seems they are as efficacious as the Originals , however frankly if it was me and afforadability was not an issue I would feel more confidant in the original manufactured by Gilead.
You say he has been taking Epclusa for 5 months?
Most regimes for that drug are 12 wks. (Unless possibly he is Genotype 3 with chirrhosis)
What treatments did he fail previously? Did he fail interferon treatment in the past or did he fail one of the new DAA’s like Harvoni?
Did he treat twice with two of the new DAA’s and fail? All that would have an impact on duration of treatment along with his genotype and if he has cirrhosis.
On the American Association for the Study of Liver Diseases (AASLD) web page
HCV Guidance: Recommendations for Testing, Managing, and Treating Hepatitis C
I could not find any information for any genotype, prior treatment status and liver cirrhosis that was longer than 16 weeks most were 12 and only some were Epclusa often Vosevi was mentioned. There is an extensive list of recommendations depending on genotype, prior treatment, if he has any resistance factors like NS3 protease inhibitor or NS5A inhibitor, and cirrhosis status.
On the prescribing information sheet for Epclusa there are only two treatment regimens listed:
Treatment-naïve and treatment- experienced, without cirrhosis and with compensated cirrhosis
12 weeks of Epclusa
Treatment-naïve and treatment- experienced, with decompensated cirrhosis
12 weeks of Epclusa with Ribavirin