yeah i noticed that too; the only thing i could figure out is that they said 80 times the analgesic potency which would mean it relieves pain 80 times more, not necessarily gets you 80 times more high. and by "biological effects of fentanyls," maybe they are referring to side effects??

but, the main thing i got out of the blurb was that it is, in fact, more potent than heroin, but then again, it's also taken in smaller doses so it probably balances out pretty nicely.