Most drug-drug interactions with Harvoni involve Pgp-inducers such as St. John’s wort or rifampicin. Concomitant use will decrease the blood concentration of Harvoni and thus, have reduced therapeutic effects.
Ledipasvir
Telaprevir
Odalasvir
Ombitasvir
Glecaprevir
Paritaprevir
Saquinavir
Enfuvirtide