Bleak venom

Bleak venom is a consumable item in Fallout: New Vegas.

Characteristics
Bleak venom is a lethal toxin that causes considerable damage to a target, dealing 150 damage to it over a span of 10 seconds. Like all venoms, it can be applied to any Unarmed or Melee Weapons (including thrown weapons) to allow you to envenom a target on a successful hit. Note: that one dose of poison lasts for one strike or thrown projectile only.

Bleak venom is the second most deadly of the poisons available in the game (with add-ons) in terms of raw damage, second only to the lethal variety of Cloud Kiss, making it extremely useful for dealing with high-level and heavily-armored foes, as well as those that regenerate hit points.

Locations

 * The Tribal Pack comes with five doses of Bleak venom.