Why Is Clozapine So Great?

An informed, explicitly speculative ('I don't fully understand a lot of the studies') hypothesis for why clozapine is the one antipsychotic psychiatrists 'wax rhapsodic' about despite its worse side effects (agranulocytosis, etc). The clue: glutamate/NMDA modulators (d-serine, glycine, sarcosine) added to OTHER antipsychotics help, but added to clozapine they do nothing — suggesting clozapine is secretly a combination antipsychotic + NMDAergic (glycine-site agonist). Several rat studies (Schwieler electrophysiology; Javitt on glycine transport; Jardemark via PKC) converge on clozapine having NMDAergic effects. Honestly caveated (lots of drugs coincidentally hit NMDA; maybe all antipsychotics do; the evidence is mixed). If true it'd be big — give antipsychotic + glycine and skip clozapine's toxicity — but these chemicals are hard to patent, so it stays experimental.

Quality 66 · Strong. Strong, low (66). An informed, original synthesis in Scott's clinical wheelhouse, turning a real clinical mystery into a testable mechanistic hypothesis. Held to low-Strong by being explicitly speculative, short, and biochem-heavy (he flags not fully following the studies).

Claude’s paradigm shift 52 · Moderate. Moderate (52). A fresh synthesis connecting several recent studies into the clozapine-as-secret-NMDAergic hypothesis, but built on others' research.

Real-world impact 2 · Minor. Minor (2). Niche clinical-pharmacology speculation; no real-world effect (the candidate chemicals are unpatentable/experimental).