These frequently asked questions will help you understand what Vosevi is, how it works, and help you decide if it is the right medication for you. What is Vosevi? Vosevi is a medication used to treat hepatitis C (HCV). It is actually three drugs in one pill: sofosbuvir, velpatasvir and voxilaprevir. Each of these drugs work to prevent the HCV virus from reproducing, and if it can’t reproduce, the virus can’t survive inside you. What genotypes does Vosevi work against? Vosevi works for people who have HCV genotype (GT) 1, 2, 3, 4, 5 and 6. Who should take Vosevi? Vosevi is approved for “treatment-experienced” patients for whom a prior HCV treatment didn’t work.