Solipsus
From Warhammer 40k - Lexicanum
Solipsus is a drug refined from the sap of a purple grass that used to cover the agri-world of Serrine.[1a]
The primary legal use of the drug was in rejuvenat treatments and was therefor widely sought after in the Imperium and it was the planets main export. It was also commonly used as the base for many sanctioned stimulants as well as several popular illegal narcotics.[1a]
The only known source of the drug went extinct as Serrine was devoured by Tyranids some time after the opening of the Great Rift.[1b]
