Dimilatis was a herb native to the planet Gala. Found only in the plains of the Galacian Sea, it could be used in small quantities of raw leaves as flavoring. When dimilatis was dried, it was safe to use in large or regular quantities, and would not addict the consumer.
If a user became addicted, they would begin to waste away as if from illness. Dimilatis was used as a poison against Queen Veda when she attempted to host an election for her successor.
- The Complete Star Wars Encyclopedia