system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: Why is it acceptable for companies to sell medication in the US that have possible allergic reactions such as "sudden death","stroke", or "heart attack"?

How is it that companies are allowed to sell medications on TV that have the possible side effect to suddenly kill their patient? As in such drugs as Vyvanse?
gpt
Absolutely anything that happens to anybody in a trial is listed as a side effect. You could be trialling an erection pill, and if some old guy died because his heart gave out from doing it too much, you would list heart failure as a possible side effect.