Lacrima

From SuspireWiki

Lacrima (also mandrake tears) is an intoxicating and expensive drink derived from from the sap of ghouled plants (called mandragora). While its effects on Kindred are both pseudo-alcoholic and addictive, mortals find it a poison that deadens the senses. Lacrima made from plants ghouled by different clans of Kindred will have different effects.

For more information, read the Ghouls book.