Robuta

https://pmc.ncbi.nlm.nih.gov/articles/PMC39655/ Fialuridine and its metabolites inhibit DNA polymerase gamma at sites of multiple adjacent analog... The thymidine analog fialuridine deoxy-2-fluoro-beta-D-arabinofuranosyl)-5-iodouracil (FIAU) was toxic in trials for chronic hepatitis B infection. One...