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This is an overview article which contains background information and cross-game comparisons. For game-specific information and stats, see the articles linked on the right.
Gameplay articles
Fallout 2Rad-X
Fallout 3Rad-X
Fallout: New VegasRad-X
Fallout 4Rad-X
Fallout 76Rad-X
Fallout TacticsRad-X
Fallout: New CaliforniaRad-X

Rad-X is a chem in Fallout, Fallout 2, Fallout Tactics: Brotherhood of Steel, Fallout 3, Fallout: New Vegas, Fallout 4 and Fallout 76.



Fallout4 Rad-X

Rad-X is an anti-radiation chemical that can significantly reduce the danger of irradiated areas. When combined with an advanced radiation suit, Rad-X can, even at moderate medical skill levels, create near-immunity to radiation. Unlike a majority of other chems, there is no possible way to become addicted to Rad-X, making it perfectly safe to use without negative effects. Furthermore, the duration can be stacked if multiple doses are taken at once.

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