It is done, in many countries there are legal requirements to report adverse events whenever they are observed upon use https://en.wikipedia.org/wiki/Pharmacov

It is done, in many countries there are legal requirements to report adverse events whenever they are observed upon use https://en.wikipedia.org/wiki/Pharmacovigilance#Adverse_event_reporting https://en.wikipedia.org/wiki/Pharmacovigilance#Adverse_even...