Metraprovoline

Metraprovoline is a drug.

Metraprovoline can be used to simulate the hormonal and biochemical profile of a Trill individual in the body of a non-Trill individual who has been joined with a symbiont. 

In 2376, Julian Bashir used metraprovoline, lethozine and metrazene when Ezri Dax started to reject the Dax symbiont after an encounter with the "cathedral artifact" in the Gamma Quadrant.