Potion of gain energy
From Wikihack
Potions of gain energy are largely useful for spellcasters and alchemy.
A blessed potion will increase current and maximum energy from 7 to 11, while an uncursed will have the same results with a range of 2 to 6.
A cursed potion will decrease your current and maximum power 2 to 6 points.
All potions of gain energy exercise wisdom when quaffed.
[edit] Alchemy
For alchemy, mixing a potion of gain energy and a healing/extra healing/full healing will "upgrade" them to an uncursed and diluted potion of extra healing, full healing, or gain ability, respectively. If you dip a potion of confusion into gain energy, you will get a potion of enlightenment (1/3 chance) or booze (2/3 chance).
