Stimpak (Fallout 4)

A stimpak, or stimulation delivery package, is a type of hand-held medication used for boosting the body's own regenerative properties in Fallout 4.

Characteristics
By default, stimpaks restore a base 30% of one's maximum hit points, but this value can be raised by taking ranks of the Medic perk; the first, second, third, and fourth rank of the perk cause stimpaks to restore 40%, 60%, 80% and 100% of one's maximum hit points, respectively.

Locations

 * Stimpaks are most commonly found in first aid kits scattered throughout buildings all over the Commonwealth.
 * Several human enemies, like raiders and Gunners, will occasionally carry stimpaks.
 * Stimpaks can also be bought from doctors and chem dealers.