Remdesivir is a drug that, until a certain point, hardly anyone had heard of - a situation that changed in 2020 with the advent of the COVID-19 pandemic. Initially, the drug was seen as a substance with which medicine would be able to defeat the coronavirus, but over time it became apparent that the joy was decidedly premature. What is remdesivir, why would it help COVID-19 patients and is its use really justified?