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Rad-X (Fallout)

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For the Rad-X that appears throughout the Fallout series, see Rad-X.
Chem Rad-X.png
+50 Radiation Resistance
After 24 Hours:
-25 Radiation Resistance
After 48 Hours:
-25 Radiation Resistance
Weight0Value$ 300
Related perks
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Rad-X is a chem in Fallout, Fallout 2 and Fallout Tactics.


Main article: Rad-X

A potent anti-radiation medicine that bolsters the user's natural radiation resistance. Taking it prior to exposure is recommended, as it can greatly reduce irradiation, particularly when combined with advanced radiation suits.[1][2]


Rad-X increases resistance to radiation by 50% per dose, maxing out at 100%. Further doses have no effect. Apart from travelling to the Glow, Rad-X has no additional use and can be safely sold.


  • Hub: Children Hospital, inside the locked storeroom.
  • Boneyard: In an ice chest in the library.


  1. Vault Dweller's Survival Guide p.5-18: "Rad-X is a preventive medication. Take Rad-X before exposure to radiation, and the total amount of radiation you receive will be reduced. Rad-X bolsters your bodies own Radiation Resistance. The stronger you are to start with, the more effective Rad-X will be."
  2. Fallout Official Survival Guide p.124: "Rad-X: A radiation prophylactic. Use this drug before you enter a radioactive area, and the total amount of radiation you receive will be reduced. Rad-X increases your body's natural Radiation Resistance."