Well I'll iterate again that I limit it to things an athlete can make an informed decision about. So basically it would be drugs whose health effects already been studied significantly. Which generally speaking requires what, a decade or more of research? Not talking about people mixing some new drug up in their lab today and injecting it into their athlete tomorrow. But maybe I am naive. I just don't see there being a huge investment market in 10-20 year old studies just to give your Olympic athletes a boost. I never got the idea the Olympics were that important to a country.
Edit: Though now I think of it it kinda makes it sound like NASCAR where manufacturers test out new designs which eventually make it into consumer models for a benefit to safety, fuel consumption, etc. But in this case the Olympians would be the NASCAR cars, and the research can possibly go on to help certain people.
As duckroll said earlier, if doping is legal, it no longer is a choice. So while you keep parroting on about "informed decisions", you're not realising that if sports are allowed to reach that point, the informed decision is "would you like to continue participating in this sport at a high level?" And yes, you're being incredibly naive. Wherever you draw the line, unethical athletes and doctors will try and cross it.
But I mean, you're comparing human beings to cars, so I have to assume you're trolling.
Anyway, every one looks at this from a professional point of view, but I can't even imagine the damage that would be caused at the amateur level if doping becomes a requirement to compete at the top level.