From publisher blurb:
Welcome to Pru’s Philters of Peculiar Potions, a D100 list of curious and unusual potions designed to add spice and mystery to your player’s treasure finds.
Why have your adventurers finding yet another healing potion or potion of water breathing when they can find one of the unexpected potions presented below?
While some of the potions in the list may have commonplace effects, many are unique and have surprising (and sometimes less than desirable) effects. All effects are expressed based on the 5e rule set and terminology to put effects into concrete terms. Feel free tochange the effects (stronger/weaker/different appearance, etc.) as appropriate for your particular campaign and rule set.
To make the potion finds a bit more unique, you can spin a story about their origin to serve as a way to introduce more backstory into your game. For instance:
Who would have created such an odd potion?
Was it done on purpose?
Was it a mistaken formulation?
Or was it an alchemist having a bit of fun?
However you decide to add these potions to your game, your players will surely delight in finding something other than the same old things they find campaign after campaign.