Dark datura is a venom which causes periodic double vision and blurring while the player is under its effects. This type of venom is favored by the White Legs, likely due to its powerful properties and due to the availability of its ingredients in Zion.
This item can be crafted by the player.
Dark datura (1)
Dark datura is usually carried by White Legs tribals.
ps3 Sometimes, even after applying the antivenom, the blurred vision effect may persist. [verified]