Harvoni is a prescription medication used to treat chronic hepatitis C, a viral infection that affects the liver. It combines two antiviral drugs, ledipasvir and sofosbuvir, which work together to stop the virus from multiplying in the body. Harvoni is typically taken as a single pill once a day, making it convenient for patients. This medication is effective for various genotypes of the hepatitis C virus and has a high cure rate. Treatment duration usually lasts 8 to 12 weeks, depending on individual factors. Patients should consult their healthcare provider for personalized advice and monitoring during treatment.