Blowgun

Blowguns are more tools of irritation than real weapons. Although they can be loaded with either sleep or poison darts, their effects can be easily shrugged off, and the dart itself will hardly injure an enemy. This means that the blowgun is fairly useless, except on the weakest of enemies.

According to Vetron's Guide to Weapons and Armour, the blowgun has a "1" effectiveness rating, and can be loaded with sleep or poison darts.

History
The blowgun only appears in the time of Ultima VII. It is mostly used by scoundrels and can't be bought. On Serpent Isle, the Goblin females are very fond of using this weapon with an annoyingly effective poison.