I think I got the hang of it.
Well, this is how mine looked like
I tried changing them back to 20000 and COOLTIME:0x000000C8 and editing them in the itemdata_xxxxx but nothing changed, I tried putting other values like 50000 but nothing changed as well, surprisingly though I got it to work on other items like invisibility detection, so could it be that the pill's cooldown is stored somewhere else other than the itemdata_xxxxx?
One last thing, changing them in the database is working totally fine, what I am trying to do is changing the client's side only.