Is there a report of the actual amounts, or concentrations, of these drugs in his system? I would like someone who knows how to interpret that to tell us their opinion.
My disappointment [not the right word, not sure what is, right now] now is with Heath. He was a very intelligent man, and he surely must have known some of the bare minimum info on those drugs. I know that his directors loved him, and felt a special connection with him, but to the film industry, he was a commodity required to make a money-making film, like a camera, or a microphone, or the lumber required to build a set. But even more necessary to keep working, because cameras and lumber are replaceable, and big stars are one of a kind. So a film industry that wants to pull in the money would keep him working, and commodify him. Very short-sighted, but raking money in often is these days.
So I don't really hold the set doctors or any other doctors too responsible here. It was up to Heath to act responsibly for his own safety and well-being.
Heath was young (and thus possibly still in the "I'm immortal" stage), extremely fit and physically courageous ("I can handle this, I'd like to try."). He was highly creative and brimming with ideas he wanted to accomplish (the music videos, managing Grace Woodroofe, preparing to direct The Queen's Gambit, and who knows what, besides the films he was acting in). He was pining for his daughter (and I believe that was agony for him). He was crossing many time zones frequently (which is extremely depleting and confounding). He was without a girlfriend (and I think he's demonstrated that he is happiest when in a relationship).
I can't imagine the stress he lived with. I wish he could have found a balance between that time two years ago when he was self-reportedly just making lunch, washing the lunch dishes, making dinner, taking care of his girls, and the supersonic, hyper-paced life he had been living recently.