Ledipasvir is an antiviral medication used to treat chronic infections caused by the Hepatitis C virus (HCV). It works by inhibiting a specific protein that the virus needs to replicate, helping to reduce the amount of virus in the body. Typically, Ledipasvir is combined with another antiviral drug called Sofosbuvir to enhance its effectiveness. This combination therapy has shown high cure rates and is often prescribed for various genotypes of HCV. Treatment duration usually ranges from 8 to 12 weeks, depending on individual patient factors.