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, and poison effects tend to be weak.


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

Example: A starting Endurance of 5.


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


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

Fallout: New Vegas
Fallout: New Vegas uses the same equation as Fallout 3, but Poison Resistance has much more use: there are cazadores, bark scorpions, night stalkers, and weapon poisons, all in addition to radscorpions. In Lonesome Road, there are also venomous tunnelers. Moreover, poison in Fallout: New Vegas is generally much more lethal.

Honest Hearts perks
 * Tribal Wisdom increases the poison resistance by 25%.

Old World Blues perks
 * Mile in Their Shoes - after consuming the nightstalker squeezin's, the poison resistance is increased by 5%.
 * Cardiac Arrest increases poison resistance by 50%.
 * Heartless makes the player character immune to poisoning.

Items and consumables
 * Gecko-backed leather armor, Gecko-backed metal armor and variants (+15)
 * Wasteland tequila (+5, affected by survival) and Large wasteland tequila
 * Snakebite tourniquet cures poison and +85 resistance (30s)
 * Antivenom, Datura antivenom and Fiery purgative cure poisoning.
 * Hazmat suit (+85 resistance)
 * Blood Shield (+50 up to +85 depending on the player character's Medicine)

Fallout 4
Poison Resistance not a derived statistic in Fallout 4. Its a particularly rare resistance to acquire and can only be done so via two methods:

Only a handful of enemies deal poison damage, most notably the Mirelurk queen and Bloodbugs.
 * Astoundingly Awesome Tales #5: Grants +5 Poison Resistance.
 * Legendary Armor pieces with the Poisoner's modifier: Grants +25 Poison Resistance. A maximum of 5 pieces can be worn at once, totalling +125 Poison Resistance
 * Med-X temporarily provides +250 Poison Resistance

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