How many people in this thread have been/are involved in Rugby at a high level? – only mark 88 seems to have genuine experience, not an opinion based on something they’ve read.
I played to a high level prior to getting injured and no-one was taking anything illegal – supplements, creatine, etc yes – nothing that was banned or would give any benefit without the working harder/longer/faster, coupled with a specially designed diet.
Most supplements i came across simply helped recovery, you could do the aforementioned (personally i didn’t take anything at all, ever – i don’t even like taking paracetamol).
I’m not saying no-one takes drugs – I’m sure there are a few, but, i don’t believe its rife, as some are suggesting – players are bigger, faster, stronger because of natural selection and lifestyle, enhanced through professionalism.