In Season 4 of The Flash when Barry Allen was in prison, when the warden figured out he was the Flash and gave him pudding tainted with tranquilizers, why did the tranquilizer in the pudding affect Barry? Wouldn't his metabolism allow him to burn thru the tranquilizers, or couldn't his body vibrate through the tranquilizers like it did when Green Arrow shot him with horse tranquilizers in Season 1?
To me it seemed that the prison boss had some knowledge about speedster and has been well prepared. At least he was able to build a cell which Flash couldnt't vibe through. Maybe he got help of Amunet Black, who knows pretty well about metas and their powers.
On the other side, I think Green Arrow was missing this kind of knowledge.