A stimpak is an autoinjector loaded with a variety of healing medications and stimulants. By injecting the stimpak, one drastically increase one's own recuperative functions and gains lost hit points almost instantly.[1][2]
Characteristics[]
Stimpaks immediately restore between 12 and 20 hit points, making them the go-to healing chem for most of the game. Super stimpaks are a more effective version, especially in combat.
↑Vault Dweller's Survival Guide p.5-19: "A stimpak (short for Stimulation Delivery Package) contains many healing chems. A soup of healing medication, if you will. By injecting the Stimpak, you drastically increase your own recuperative functions and restore lost hit points almost instantly."
↑Fallout Official Survival Guide p.124: "Stimpak: The stimpak is an autoinjector loaded with a variety of healing medications and stimulants. Injecting yourself or another character will increase your natural healing ability and give you an immediate Hit Point boost."