penciclovir and favipiravir

The ongoing SARS-CoV-2 pandemic stresses the need for effective antiviral drugs that can quickly be applied in order to reduce morbidity, mortality, and ideally viral transmission. By repurposing of broadly active antiviral drugs and compounds that are known to inhibit viral replication of related viruses, several advances could be made in the development of treatment strategies against COVID-19. The nucleoside analog remdesivir, which is known for its potent in vitro activity against Ebolavirus and other RNA viruses, was recently shown to reduce the time to recovery in patients with severe COVID-19. It is to date the only approved antiviral for treating COVID-19. Here, we provide a mechanism and evidence-based comparative review of remdesivir and other repurposed drugs with proven in vitro activity against SARS-CoV-2.

Topics: Adenosine Monophosphate; Alanine; Amides; Antiviral Agents; Benzamidines; COVID-19 Drug Treatment; Drug Repositioning; Esters; Guanidines; Guanine; Humans; Indoles; Lopinavir; Protease Inhibitors; Pyrazines; Ribavirin; Ritonavir; SARS-CoV-2; Virus Internalization; Virus Replication