Super stimpak is a more advanced version of the regular stimpak. While it heals more severe wounds, it also has unpleasant side effects, causing minor damage some time after use. The super version comes in a hypodermic, but with an additional vial containing more powerful drugs than the basic model and a leather belt to strap the needle to your limb. an indication of a prolonged release infusion of the drug perhaps for increased absorption. The super stimpak is much less common in the wasteland than the standard stimpak.
A super stimpak heals the player over a short period when used. The amount of health restored by one super stimpak is 204 HP (244, 285, 326, 367, 408 HP depending of each rank of the First-Aidskill - skill function as perk]s do in the other games).