Ombitasvir/paritaprevir/ritonavir Ombitasvir Dasabuvir Paritaprevir Ritonavir ATC code J05 Hepatitis C virus nonstructural protein 5B Hepatitis C virus nonstructural protein 5A Elbasvir/grazoprevir Hydrocodone Ledipasvir/sofosbuvir Simeprevir Hepatitis C Fluticasone furoate Discovery and development of NS5A inhibitors List of drugs granted breakthrough therapy designation