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For the Med-X that appears in the Fallout series of games, see Med-X.

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 4 minutes, or 8 minutes with the Chemist perk, and 9 minutes with both Chemist and Day Tripper (perk). If Logan's Loophole is then added the time jumps 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 hours (game time) if the player's health drops below 33% or if a limb's health drops below 25%. While being administered players using the Stealth Suit can become addicted to Med-X 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%.

Behind the scenes

Originally, Med-X was named morphine in the game. However, on July 4, 2008, Fallout 3 was refused classification by the OFLC in Australia, thus making the game illegal for sale in the country due to the "realistic visual representations of drugs and their delivery method [bringing] the 'science-fiction' drugs in line with 'real-world' drugs." On September 9, 2008 Bethesda vice president of PR and marketing, Peter Hines, described the idea of the Australian version of Fallout 3 as a misconception, and said all versions of Fallout 3 will not include real world drug references. However, the name "morphine" is still used in the Japanese and Czech versions of the game.

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