Well guess I got my answer. That means he'd be back to 100%, but only the time the medicine will be active, so the question now is how long is it active?
Interesting, then how did he escape? It was stated no one did outside of Shiki
The only other moment where he could have could be during the impel down event when Luffy came for Ace, with Blackbeard's trial to look for lvl6 prisoners with it pointed out that many dangerous criminals escaped
Guess it could also explain when Who's Who saw Jinbei. Both were in Impel down at that moment, but that mean they never directly fought each other