A serotonin-norepinephrine releasing agent (SNRA) is a type of drug which induces the release of serotonin and norepinephrine (and epinephrine) in the body and/or brain.
Only a few SNRAs are known, examples of which include norfenfluramine, MBDB, and 6-methyl-MDA.
A closely related type of drug is a serotonin-norepinephrine reuptake inhibitor (SNRI).
References
Serotonin-norepinephrine releasing agent Wikipedia(Text) CC BY-SA