From Pixelmon Wiki
A Hyper Potion is a type of medicine used to heal a Pokémon by 120 HP. It can be used by sending out a Pokémon and using the Hyper Potion on the Pokémon. It can be obtained from shopkeepers and as a tier 1 special drop.
Potions can be crafted by using berries in a brewing stand since update 7.2:
|Potion||Usable Berries||Reagent, base|
Hyper Potion used to have the following crafting recipes, which are no longer working.
Hyper Potion could also be used to craft Max Potions. This recipe is no longer working.