FNV-23-B
this was the antiviral drug developed by Doctor Fesjo Negleem to "counteract" the effects of the Gray Death plague that struck the planet Sedesia. The Gray Death was actually known as FNV-23 to the Empire, and had been developed by Doctor Negleem as part of the Pathogen-Based Loyalty Enhancement Program. The secret of FNV-23-B was hidden within Imperial computers, but it was discovered that every dose contained tiny globules of FNV-23 held within a polysaccharide coating. When the coating was digested, it release a new strain of FNV-23 into the system, thereby requiring another treatment of FNV-23-B. In this way, the natives of Sedesia were beholden to the Empire for the continual availability of FNV-23-B for their survival.