Carsunum
this rare, black form of spice is mined on Sevarcos. When consumed, it induces a feeling of euphoria and heightened abilities. When the effects wear off, the user experiences lethargy and listlessness. The spice also has a toxic effect on the user's metabolism, and withdrawal often results in death because the body can't react fast enough to the change. The Healer's Guild learned that carsunum spice could control and prevent the spread of hive viruses.