Application-level market taxonomy maps therapeutic demand to clinical manifestation, parsing the CNS disorders therapeutics space into depression, schizophrenia, multiple sclerosis, Alzheimer’s disease, Parkinson’s disease, epilepsy, migraine, attention-deficit hyperactivity disorder (ADHD), and spinal muscular atrophy (SMA). Depression and schizophrenia together account for the dominant share of prescription value, yet the fastest incremental dollar growth now originates from Alzheimer’s as amyloid-targeting antibodies gain reimbursement despite high unit cost. Multiple sclerosis represents a high-value niche where interferon replacements and sphingosine-1-phosphate modulators extend therapy cycles, whereas epilepsy remains volume-driven with strong generic penetration. Migraine has been re-priced through CGRP inhibitors, creating a new premium tier, while SMA illustrates how single-gene therapies can generate outsized revenue from small patient pools. Segmenting by application thus links prevalence, clinical urgency, and payer willingness-to-serve to overall market expansion.