Sofosbuvir (manufacturing code name GS-7977; formerly PSI-7977) is a viral polymerase nucleotide inhibitor that was approved in December 2013 by the United States Food and Drug Administration (FDA), and in January 2014 by the European Medicines Agency for the treatment of HCV infection. The WHO Guidelines for the screening, care and treatment of persons with hepatitis C infection recommend sofosbuvir in combination with ribavirin in genotypes 1, 2, 3 and 4 HCV infection, either with or without pegylated interferon (depending on the HCV genotype)7. Sofosbuvir in combination with ribavirin is the first interferon-free HCV treatment. The fact that sofosbuvir is all oral simplifies the treatment and will allow expansion in low resource settings with poor health infrastructure.