Poison Resistance

Poison Resistance is derived statistic in Fallout, Fallout 2, Fallout 3, Fallout: New Vegas and Fallout Tactics.

This statistic reduces poison damage by a percentage as well as the chance to get poisoned. In Fallout 3 and Fallout: New Vegas, this statistic is hidden.

Fallout, Fallout 2, Fallout Tactics

 * $$\text{Initial Level}=\text{Endurance}\times5$$


 * The Fast Metabolism trait sets initial poison resistance to 0.
 * The Snakeater perk increases poison resistance by 25% per rank.
 * The Vault City Inoculations perk increases poison resistance by 10%.

Fallout 3
Poison Resistance is also present in Fallout 3. It has a much smaller part than in the previous games since only a few enemies (Radscorpions chief among them) use poison.


 * $$\text{Initial Level} \%=(\text{Endurance}-1)\times5$$

Example: A starting Endurance of 5.


 * $$(5-1)\times5=20\%~\text{Poison resistance}$$


 * The Cyborg perk can increase resistance +10%.
 * The Survival Expert perk can add between an additional +2% to +6%.

Fallout: New Vegas
In Fallout: New Vegas, the poison resistance has much more use, as now there are Cazadores, Bark Scorpions, Nightstalkers, and weapon poisons. In addition, there are also Venomous Tunnelers in the Fallout: New Vegas add-on, Lonesome Road.
 * Tribal Wisdom increases the posion resistance for 25%.
 * Mile In Their Shoes - after consuming the nightstalker squeezin's, the poison resistance is increased by 5%.
 * Cardiac Arrest increases poison resistance for 50%.

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