A few years ago he came out in a interview about a big London boxer that was on PED's. We know it was a heavyweight he was talking about but who stopped Larry from talking ? Who stood to lose mega money ?
He has lost 18 out of his last 19. It is easier to blame others for PEDS than look at your own short comings.
PED taking at HW is rampant. Its not whether you are taking them that counts, its whether you get caught. Same with the mens 100 metres sprint. He who is king is he who takes PEDs and never gets caught (or can pay the testers off so he always tests clean)
There were loads of stories about David Haye being on HGH. Was before Joshua's time and so Im thinking Larry was talking about Haye. Haye was big enough money for someone to make sure Larry shut it. I also believe that you can basically alter the chemical formula of a PED very minutely, very easily, it becomes a different substance, and is not therefore on the list, although it is still a performance enhancing substance.
You can, but that would cost huge amounts of money, time and even then wouldn't necessarily create an effective steroid. Hundreds upon hundreds of steroids were created by companies in the 50's and 60's (they are all listed in Vida) so it'd be far easier to research the ones that are effective, yet haven't been banned and synthesise them if possible. However, even if you did that you still can't be 100% sure it will get through a doping test.