Tesokine
Tesokine was a drug used to help a baby from one species to properly metabolize the nutrients from another species while in the womb.
In 2372, tesokine was administered to Kira Nerys so that Miles and Keiko O'Brien's baby could metabolize Bajoran nutrients while she carried their baby to term. (DS9: "Body Parts")
According to the script, this drug's name was pronounced as "TESS-a-keen". [1]