Earlier quoted context omitted.
I'm not Pharma industry expert but ... I'm pretty sure it's much the same as venture capital. That is to say that's it's not that expensive to R&D it, certainly compared to the eventual sale price, but it's carrying the cost of the hundred potential drugs that never made it to market that's the killer.
No it’s also ludicrously expensive to R&D a drug, even if you just count the costs of the successful program. You’d be looking at easily $50-$150MM just in clinical trial costs, not to mention the years or decades of preclinical work. Factor in the failed programs and you’re looking at about $2B of spend in order to bring a drug to market.
Several drug developments are halted before they reach market. Novo for instance lost a lot of money on their bet to develop inhalable insulin 15 years ago
That cost also has to be recouped when finally hitting the jackpot