Berserk syringe

The berserk syringe is a type of ammunition in Fallout 4.

Gameplay
The berserk syringe is a small dart used only in the syringer. Unlike most ammunition in the game, it is located under the "AID" section of the Pip-Boy menu as a consumable, and has a small amount of weight.

Enemies hit with the berserk syringe have a chance to fall into a frenzy for two minutes, causing them to attack everyone around them. Enemies with too high a level will resist the effect, which results in an on-screen notification stating "[target name] is too powerful to berserk." The syringe does not work on robots, synths, turrets or enemies with poison immunity.

Crafting
The berserk syringe can also be used as a component to craft Fury.

Locations
Craftable at chemistry stations by the Sole Survivor.