Death Sticks are hallucinogens in the Star Wars series. They can reduce the lifespans of species work and are like mind drugs.
After the Battle of Naboo, the Bando Gora develop deadly ones and are potent to get more people into working for the Bando Gora cult. They distribute several of these but were stopped by Jango Fett.
Obi-Wan was offered to take it when chasing Zam Wesell but mind controlled the dealer to go home and rethink his life.