Fallout Wiki
Fallout Wiki
For the Rad-X that appears in the Fallout series, see Rad-X.

Anti-radiation chems to be taken before exposure. No known side effects.

Rad-X is a chem in Fallout, Fallout 2, Fallout Tactics and Van Buren.

It is an anti-radiation chem to be taken before exposure (unlike RadAway, which removes the effects of radiation after a person gets irradiated).



Fallout 2


  • The effects of Rad-X are stackable up to two subsequent doses, but taking an immediate third dose of Rad-X has no effect. This is due to the fact that in the original Fallout, taking two doses of Rad-X granted 100% radiation resistance, enough to survive the most irradiated place on the map for several hours.
  • Despite having no harmful effects, in Fallout Tactics it is possible to overdose if taken too quickly or alongside other chems, depending on Endurance.