As a vaccine, it prevented the spread of a plague that existed on Brekka's neighboring planet, Ornara sometime in the 22nd century. It was made by a complex and expensive process, including the harvesting and cultivation of the originating plant, and its distillation into the final product. The euphoria experienced when taking felicium was immediate and seemed to be somewhat sedative and pain relieving, similar to planet Earth's opiates. After taking the drug, the individual would eventually experience withdrawal symptoms within 72 hours.