Mega-Potion

The Mega-Potion is a curative item in many of the Final Fantasy games. An upgrade of the original Potion, this restores a high amount of HP to all active party members. They are often quite rare, and it is smart to save these.

Dirge of Cerberus -Final Fantasy VII-
Mega-Potions restore an amount of 2000 HP.

Final Fantasy X-2
This potion keeps the same effects from Final Fantasy X. It is available for free once an Alchemist dressphere has mastered the Stash ability in that particular girl's skillset, and can also be accessed through the Mix ability.