Metrazene

• Trill antiviral agent (DS9 Novel: Mission Gamma: Cathedral)
• In concert with metraprovoline and lethozine, can be used to prevent symbiont rejection in non-Trill hosts through adjusting host biochemical response and averting transplant infection by retroviral agents (TNG: "The Host"; DS9 Comic: Divided We Fall: All Fall Down; DS9 Novel: Mission Gamma: Cathedral)