It’s short for rizatriptan benzoate, the benzoate salt form of rizatriptan,which is a member of the triptan class agents with anti-migraineproperty. Selectively binds to and activates serotonin 1B receptorsexpressed in intracranial arteries, and to 5-HT 1D receptors located onperipheral trigeminal sensory nerve terminals in the meninges andcentral terminals in brain stem sensory nuclei.