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    Poison

    A poison is a substance that interferes with the natural functions of a living creature's body, causing injury or death, typically requiring only a very small amount. The target of a poison may resist with a successful saving throw. Poisons can be delayed or cured with spells such as delay poison and neutralize poison. 

    Poisons have four categories, based on how they reach the target: contact, ingested, inhaled, or injury.

    Contact: These poisons are delivered the moment a creature touches the poison with its bare skin. Such poisons can be used as injury poisons. Contact poisons usually have an onset time of 1 minute and a frequency of 1 minute.

    Ingested: These poisons are delivered when a creature eats or drinks the poison. Ingested poisons usually have an onset time of 10 minutes and a frequency of 1 minute.

    Inhaled: These poisons are delivered the moment a creature enters an area containing such poisons and do not usually have an onset time. For most inhaled poisons, 1 dose fills a volume equal to a 10-foot cube. A creature can attempt to hold its breath while inside the area to avoid inhaling the toxin. A creature holding its breath receives a 50% chance of not having to make a Fortitude save each round. See the rules for holding your breath and suffocation. If a creature is holding its breath and fails the constitution check to continue doing so, rather than suffocating it begins to breathe normally again (and is subject to the effects of the inhaled poison if still in the area).

    Injury: These poisons are primarily delivered through the attacks of certain creatures and through weapons coated in the toxin. Injury poisons do not usually have an onset time and have a frequency of 1 round.

    Applying Poison

    One dose of poison smeared on a weapon or some other object affects just a single target. A poisoned weapon or object retains its poison until the weapon scores a hit or the object is touched (unless the poison is wiped off before a target comes in contact with it).

    Applying poison to a weapon or single piece of ammunition is a standard action. Whenever you apply or ready a poison for use, there is a 5% chance that you expose yourself to the poison and must save against the poison as normal. This does not consume the dose of poison. Whenever you attack with a poisoned weapon, if the attack roll results in a natural 1, you expose yourself to the poison. This poison is consumed when the weapon strikes a creature or is touched by the wielder. If you have the poison use class feature (such as from the assassin prestige class or the alchemist base class), you do not risk accidentally poisoning yourself when applying poison.

    Multiple Doses of Poison

    Unlike other afflictions, multiple doses of the same poison “stack,” meaning that successive doses combine to increase the poison's DC and duration.

    Making your initial saving throw against a poison means stacking does not occur—the poison did not affect you and any later doses are treated independently. Likewise, if a poison has been cured or run its course (by you either making the saves or outlasting the poison's duration), stacking does not occur. However, if there is still poison active in you when you are attacked with that type of poison again, and you fail your initial save against the new dose, the doses stack. This has two effects, which last until the poisons run their course.

    Increased Duration: Increase the duration of the poison by 1/2 the amount listed in its frequency entry.

    Increased DC: Increase the poison's DC by +2.

    These increases are cumulative (a third dose adds another 1/2 of the frequency to the duration and +2 to the DC, and so on). When affected by multiple doses of the same poison, you only make one saving throw at this higher DC when required by the frequency, rather than one saving throw against each dose of the poison.

    Multiple doses do not alter the Cure condition of the Poison, and meeting that Cure condition ends all doses of the poison.

    Applied contact poisons and injury poisons cannot inflict more than one dose of poison per weapon at a time (because the poison on the weapon only lasts for one successful attack before it wears off). Inhaled and ingested poisons can inflict multiple doses at once.

    Doses from different poisons (such as an assassin with greenblood oil on his dagger and Medium spider venom on his short sword) do not stack—the effects of each are tracked separately.

    Example: A fighter is facing three Medium spiders (which inject Medium spider venom on a successful bite). Medium spider venom normally has a frequency of 4 rounds and a DC of 14. On the first round, all three spiders bite him and he fails all three saves. The second and third doses each increase the total duration by 2 rounds (half of the 4 round frequency) and the save DC by +2, for a total duration of 8 rounds (4 + 2 + 2) and DC 18 (14 + 2 + 2). Fortunately, Medium spider venom is cured after just one successful save, even though the fighter is battling three doses at once.

    Example: This time, the fighter makes two of his initial saves against the spider venom, so he only has one dose active in his body. He fails his save on his turn. On the spiders's turn, two of them bite him, and he fails both saves, which increases the duration to 8 rounds and the DC to 18, just as if he had failed all three saves in the same round.

    Crafting Poison

    You can make poison with the Craft (alchemy) skill. The DC to make a poison is equal to its Fortitude save DC. Rolling a natural 1 on a Craft skill check while making a poison exposes you to the poison. This does not consume the poison. If you have the poison use class feature, you do not risk accidentally poisoning yourself when applying poison.

    The sample poisons listed below represent just some of the common poisons available in cities. Of course, most cities have laws against buying, selling, or crafting poison.

    Poisons
    Poison Type Fort DC Onset Frequency Effect Cure Price (gp) Source
    Arsenic ingested 13 10 min. 1/min. for 4 min. 1d2 Con 1 save 120 UE
    Belladonna ingested 14 10 min. 1/min. for 6 min. 1d2 Str, see text 1 save 100 UE
    Black adder venom injury 11 1/rd. for 6 rds. 1d2 Con 1 save 120 UE
    Black lotus extract contact 20 1 min. 1/rd. for 6 rds. 1d6 Con 2 saves 4,500 UE
    Bloodroot injury 12 1 rd. 1/rd. for 4 rds. 1 Con and 1 Wis 1 save 100 UE
    Blue whinnis injury 14 1/rd. for 2 rds 1 Con / unconscious 1d3 hrs. 1 save 120 UE
    Burnt othur fumes inhaled 18 1/rd. for 6 rds. 1 Con drain / 1d3 Con 2 saves 2,100 UE
    Dark reaver powder ingested 18 10 min. 1/min. for 6 min. 1d3 Con and 1 Str 2 saves 800 UE
    Deathblade injury 20 1/rd. for 6 rds. 1d3 Con 2 saves 1,800 UE
    Dragon bile contact 26 1/rd. for 6 rds. 1d3 Str 1,500 UE
    Drow poison injury 13 1/min. for 2 min. unconscious 1 min./2d4 hrs. 1 save 75 UE
    Giant wasp poison injury 18 1/rd. for 6 rds. 1d2 Dex 1 save 210 UE
    Greenblood oil injury 13 1/rd. for 4 rds. 1 Con 1 save 100 UE
    Green prismatic poison spell varies 1/rd. for 6 rds. Death/1 Con 2 saves UE
    Hemlock ingested 18 10 min. 1/min. for 6 min. 1d6 Dex, see text 2 saves 2,500 UE
    Id moss ingested 14 10 min. 1/min. for 6 min. 1d3 Int 1 save 125 UE
    Insanity mist inhaled 15 1/rd. for 6 rds. 1d3 Wis 1 save 1,500 UE
    King's sleep ingested 19 1 day 1/day 1 Con drain 2 saves 5,000 UE
    Large scorpion venom injury 17 1/rd. for 6 rds. 1d2 Str 1 save 200 UE
    Lich dust ingested 17 10 min. 1/min. for 6 min. 1d3 Str 2 saves 400 UE
    Malyass root paste contact 16 1 min. 1/min. for 6 min. 1d2 Dex 1 save 250 UE
    Medium spider venom injury 14 1/rd. for 4 rds. 1d2 Str 1 save 150 UE
    Nightmare vapor inhaled 20 1/rd. for 6 rds. 1 Wis and confused 1 round 2 saves 1,800 UE
    Nitharit contact 13 1 min. 1/min. for 6 min. 1d3 Con 1 save 650 UE
    Oil of taggit ingested 15 min. unconscious 1d3 hours 1 save 90 UE
    Purple worm poison injury 24 1/rd. for 6 rds. 1d3 Str 2 saves 700 UE
    Sassone leaf residue contact 16 1 min. 1/min. for 6 min. 2d12 hp/1 Con 1 save 300 UE
    Shadow essence injury 17 1/rd. for 6 rds. 1 Str drain / 1d2 Str 1 save 250 UE
    Small centipede poison injury 11 1/rd. for 4 rds. 1 Dex ??? save 90 UE
    Striped toadstool ingested 11 10 min. 1/min. for 4 min. 1d3 Wis and 1 Int 1 save 180 UE
    Tears of death contact 22 1 min. 1/min. for 6 min. 1d6 Con and paralyzed 1 min. 6,500 UE
    Terinav root contact 16 1 min. 1/min. for 6 min. 1d3 Dex 1 save 400 UE
    Ungol dust inhaled 15 1/rd. for 4 rds. 1 Cha drain/1d2 Cha 1 save 1,000 UE
    Violet venom contact 13 1/min. for 6 min. 1d2 Str and 1d2 Con 1 save 800 UE
    Wasp Swarm Poison injury 13 1/rd. for 4 rds. 1 Dex damage 1 save UE
    Wolfsbane ingested 16 10 min. 1/min. for 6 min. 1d3 Con 1 save 500 UE
    Wyvern poison injury 17 1/rd. for 6 rds. 1d4 Con 2 saves 3,000 UE