The types segment classifies drugs by pharmacological mechanism rather than clinical indication, providing a market taxonomy that isolates product‑level dynamics. Core categories comprise antidepressants (sub‑divided into SSRIs, SNRIs, tricyclics, MAOIs), anxiolytics (benzodiazepines, non‑benzodiazepine GABA modulators, serotonergic agents), antipsychotics (typical, atypical, and emerging dopamine‑serotonin modulators), mood stabilizers (lithium, anticonvulsant derivatives), stimulants (amphetamine‑based, methylphenidate), and novel agents targeting glutamatergic or neuroinflammatory pathways. Antidepressants dominate the type‑level revenue, representing roughly 40 % of the market, owing to their broad indication spectrum and generic penetration. Antipsychotics contribute about 25 % as high‑cost, long‑term treatments for schizophrenia and bipolar disorder. Anxiolytics and mood stabilizers each capture near 15 % of sales, reflecting steady demand and incremental formulation improvements. Stimulants and novel mechanisms together hold the remaining 5 %, but they are pivotal for future growth as pipeline candidates advance. This type‑based view clarifies how therapeutic innovation and patent cycles shape overall market size.