Poison

Poison Vial is a potion that can be created using the Alchemy skill. Unlike most other offensive alchemical creations which are meant to be thrown directly at foes, the Poison Vial primarily functions as a buffing enhancement to the player's other weapons. Possession of a Poison Vial in the player character's inventory may also reveal additional, highly contextual options during some dialogues (usually relating to sabotage, assassination, etc).

• Drag and drop directly onto a melee weapon or a stack of missiles/throwing weapons in the inventory to add poison to their attacks
• Upon application to any armament the weapon will then display a small green droplet icon, alongside a number representing the amount of remaining poison-enhanced strikes
  • A single vial will poison up to 20 missiles or throwing weapons of any type for one strike each, and is consumed upon doing so; note that if fewer than 20 projectiles exist in the receiving stack, the additional poison will be wasted
  • Likewise, one vial will poison any melee weapon for exactly 20 subsequent hits in combat, and does not otherwise degrade or wear off over time
    • Reapplication of a new poison vial to an already-poisoned melee weapon will refresh the poison strike counter back to 20, rather than merely adding 20 more strikes; as such, the most frugal alchemists know to use up all existing poison strikes prior to reapplication
• Countered by Antidote, should the player character encounter particularly resourceful foes wielding poisoned weaponry themselves

Types of Poison Vials

Type	Base Reagent	Modifier Agent	Weight	Description
Poison Vial	Kadura leaves	-	0.1	Natural poison - good for coating your weapons and other nefarious purposes. After 20 successful strikes, the poison will be washed away by blood. Its effects last 3 turns, starting with the next turn after the attack. The damage can be reduced by the victim's Constitution.
Poison Vial (Potent)	Kadura leaves	Emoryl Root	0.2	Natural, very potent poison - good for coating your weapons and other nefarious purposes. After 20 successful strikes, the poison will be washed away by blood. Its effects last 5 turns, starting with the next turn after the attack. The damage can be reduced by the victim's Constitution.

Looks like damage and duration were changed some time after Sep 2014.

Poison Vials by Alchemy Level

Type	Alchemy Level	Damage	Strikes	Duration	Sell price
Poison Vial	L2	3	20	3	20
Poison Vial	L4	4	20	3	30
Poison Vial	L6	5	20	3	40
Poison Vial	L8	6	20	3	50
Poison Vial	L10	7	20	3	60
Poison Vial (Potent)	L9	6	20	7	192
Poison Vial (Potent)	L10	7	20	7	192

Links

Link 1 - Alchemy (as at 14 Sep '14)