Benzocyatizine
From Star Trek : Freedom's Wiki
Benzocyatizine is type of medication used to treat low serum isoboramine levels in Trill patients.
In 2371, Jadzia Dax's isoboramine level began to decline when the Dax symbiont experienced flashbacks of a previous host, Joran Belar, as a result of the failure of a memory block. To compensate (and in an attempt to hide the truth regarding Trill symbionts), Doctor Renhol put Jadzia Dax on a regimen of benzocyatizine. This treatment, however, did not work. (DS9: "Equilibrium")
