I had an idea, let's say someone were to die of said overdose. The body is found hours later, could it be possible to keep it alive with something that manually pumps the heart, and hook them up to whatever machine it is that cleans the blood etc. And providing intermittent medium low current. And in the meantime have a facility replicate their healthy blood and provide it with lots of plasma, stem cells, specific nutrients and chemicals and simply do a type of transfusion and hope they wake up lol, if needed brain surgery idk. got the idea from a show.