Sofosbuvir is an antiviral medication used to treat chronic hepatitis c infection. It works by interfering with the virus replication process within liver cells. The drug is classified as a nucleotide polymerase inhibitor that targets the viral rna polymerase enzyme. By binding to the active site of the polymerase, Sofosbuvir prevents the synthesis of new viral rna strands. This inhibition reduces the amount of virus in the bloodstream and allows the immune system to clear the infection more effectively. The resulting decrease in viral load leads to improved liver function and lowers the risk of long term liver damage.

Sofosbuvir is an antiviral medication used to treat chronic hepatitis c infection. It belongs to a class of nucleotide polymerase inhibitors that target viral rna replication. The drug is converted intracellularly to an active triphosphate form that mimics uridine. This active metabolite incorporates into the growing rna chain of the hepatitis c virus. Chain termination occurs after incorporation preventing further rna synthesis. Inhibition of viral replication leads to a reduction in viral load in the patient. The decrease in viral load supports immune control and improves liver health outcomes.

Sofosbuvir may cause mild allergic reactions such as skin rash and itching. It can lead to liver enzyme elevations detectable through routine blood tests. Some patients report nausea and fatigue that usually resolve without intervention. Headache and insomnia have been noted as occasional central nervous system effects. The medication can occasionally result in anemia characterized by reduced red blood cell counts. Gastrointestinal disturbances including diarrhea or abdominal discomfort have been reported. Long-term safety data continue to show a low incidence of severe adverse events.

Sofosbuvir can cause fatigue in certain individuals. Headache is reported by some patients during treatment. Nausea and digestive discomfort may occur in a minority of cases. Insomnia or difficulty sleeping has been observed in some users. Mild skin rash can develop as a reaction to the medication. Elevated liver enzyme levels are sometimes detected in blood tests. Anemia is a less frequent but documented effect of long term use.