4-FIBF vs Fent HCL

Anyone know anything about 4-FIBF (4-Fluoroisobutyrfentanyl) in terms of its strength? I was wondering how much stronger Fentanyl HCL is than 4-FIBF. Anyone have any clue?


Comments


[5 Points] permaspun:

Its like tree hunnid and fidy times stronger.


[1 Points] LowerHaighter:

That largely depends on how you measure 'strength' (analgesia? euphoria? satiation of cravings? does duration count?), but you can find another person's evaluation/comparison at: https://www.reddit.com/r/opiates/comments/3ved25/anybody_try_furanylfentanyl_fuf_or/

Looks like someone else in this thread estimated FIBF at ~1/6 the potency of Fent HCL, where the post linked above estimated ~1/3, so take these estimates with a grain of salt.