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Fallout Wiki

Med-X is a chem in Fallout: New Vegas.


Med-X is a highly potent painkiller which when injected, makes the user impervious to pain to the degree that Damage Resistance is increased by 25%. This will last for four minutes, or 8 minutes with the Chemist perk, and 9 minutes with both the Chemist and Day Tripper perks. If the player character has the Logan's Loophole trait, the duration is increased to 13 minutes.

Besides providing the benefits of regular armor, the stealth suit Mk II in Old World Blues will automatically dispense Med-X every 2.5 in-game hours if the player character's health drops below 33% or if a limb's health drops below 25%. Therefore, player characters using the stealth suit can become addicted to Med-X in this way.


Related quests


  • In the G.E.C.K., the Editor ID is still displayed as morphine.
  • In the G.E.C.K., it lists the effect as ChemIncDamResistPsycho. This would have been psycho's effect at first, mimicking the psycho from Fallout, Fallout 2, and Fallout Tactics.
  • The effects of addiction are listed as "Morphine Addiction."
  • According to Boxcars, five doses of Med-X is enough to kill a man. However, the player character can use more than five Med-X without any harmful effects past addiction.
  • When combined with the rebreather, the total damage resistance is 28%.