[ericd]

I really don't think that's a generous multiplier, at all. I'm pretty sure it's not manufacturing doses that's costly, it's probably nearly free on a marginal cost basis, the costly part is trying a huge number of options, getting all the way to testing on them, and then it not panning out, and paying the researchers who are doing that all the while.

Another comment nailed it, this is a power law return market, like startup investing. Those very few 100-1000x returns pay for everything else. You can't look at one of the most successful drugs and the costs of making it and decide that they should get a 50% return on top of that, it needs to cover a huge number of failures.