Olanzapine vs Clozapine
National NHS prescribing compared (Prescription Cost Analysis)
Olanzapine was dispensed 900.2× as often as Clozapine in March 2026 — 227,743 items versus 253 in England.
227,743items
Olanzapine · March 2026
NHSBSA Prescription Cost Analysis
253items
Clozapine · March 2026
NHSBSA Prescription Cost Analysis
Figure 1. Olanzapine versus Clozapine: national items dispensed by month
▬ Olanzapine · ╌ Clozapine
Source: NHSBSA Prescription Cost Analysis, to March 2026
| Measure | Olanzapine | Clozapine |
|---|---|---|
| Items, March 2026 | 227,743 | 253 |
| Items, last 12 months | 2,701,116 | 3,019 |
| Net ingredient cost, March 2026 | £371,369 | £6,961 |
See the full profile for Olanzapine or Clozapine.