“…However, broad‐action tricyclics have been quantified as superior to narrow‐action selective serotonin reuptake inhibitors (SSRIs) in those with melancholic depression, with differential effectiveness increasing with older age of the patient 4 , while the dual‐action antidepressants appear to have intermediate efficacy. Any such gradient might then logically argue for a TRD management model whereby those with melancholia not responding to an SSRI then receive a broader‐action antidepressant – perhaps a dual‐action antidepressant, followed by a TCA, and then possibly a monoamine oxidase inhibitor (MAOI) – with MAOIs long positioned as strong candidates for managing treatment‐resistant melancholia 5 .…”