When consumed the lucky ones only get damage equivalent to at least 80 bombs and the unlucky just die from a brew of a cat. Take 10d20 damage. it looks like a potion of healing.
DM: You are on 1 hit point and you used the healing potion your mom packed you and you are surrounded by orks what will you do?
small brain player: I know I will drink the healing that the cat gave me!
MR tabby cat: yeah drink it now (secretly plotting cuz he was the one who brewed it.)
small brain player: haha potion go glug glug you dum orks.
Jeremy the wizard: Ah well we tried to save him.
DM:(slaps his face out of the idiocy.) your character dies instantly after consuming.
MR tabby cat: wheeeeee I take all ur gold as my doctors tax
small brain player: ANGRY ANGRY ANGRY
Jeremy the wizard: Destroys MR tabby cat and revives small brain player.
small brain player: :) :) :) :) :)
small brain player: wait where are my wallet?