A Hyper Potion is an upgraded version of the Super Potion. It is an item that heals a Pokémon by 200 HP. It has no effect on a fainted Pokémon. They cost 1200 Pokémon Dollars at Poké Marts and can be sold for 600 Poké Dollars (375 in VIV). It belongs to the Medicine Pocket, a Pocket introduced in Generation IV, in the player character's bag. From Generation I to III, a Hyper Potion is found in the Items Pocket.
As of Generation VII, it only heals 120 HP.