"be put in use IMMEDIATELY"
It can be a mistake to avoid helpful medication because one idiot kills himself with fish tank cleaner.
It can actually be used immediately at a doctors discretion - it's just not officially recommended yet in the US.
The man in the story says he was also given benadryl and a drug he didn't recognize. So please don't pretend that one drug saved the man's life. For all we know, he was going to recover anyway, or one of the other drugs (which he doesn't even know what they are) helped him.