Olanzapine vs Quetiapine
National NHS prescribing compared (Prescription Cost Analysis)
Quetiapine was dispensed 1.8× as often as Olanzapine in May 2026 — 383,782 items versus 217,708 in England.
217,708items
Olanzapine · May 2026
NHSBSA Prescription Cost Analysis
383,782items
Quetiapine · May 2026
NHSBSA Prescription Cost Analysis
Figure 1. Olanzapine versus Quetiapine: national items dispensed by month
▬ Olanzapine · ╌ Quetiapine
Source: NHSBSA Prescription Cost Analysis, to May 2026
| Measure | Olanzapine | Quetiapine |
|---|---|---|
| Items, May 2026 | 217,708 | 383,782 |
| Items, last 12 months | 2,693,982 | 4,691,278 |
| Net ingredient cost, May 2026 | £440,809 | £4,101,012 |
See the full profile for Olanzapine or Quetiapine.