Olanzapine vs Perphenazine
National NHS prescribing compared (Prescription Cost Analysis)
Olanzapine was dispensed 25,304.8× as often as Perphenazine in March 2026 — 227,743 items versus 9 in England.
227,743items
Olanzapine · March 2026
NHSBSA Prescription Cost Analysis
9items
Perphenazine · March 2026
NHSBSA Prescription Cost Analysis
Figure 1. Olanzapine versus Perphenazine: national items dispensed by month
▬ Olanzapine · ╌ Perphenazine
Source: NHSBSA Prescription Cost Analysis, to March 2026
| Measure | Olanzapine | Perphenazine |
|---|---|---|
| Items, March 2026 | 227,743 | 9 |
| Items, last 12 months | 2,701,116 | 104 |
| Net ingredient cost, March 2026 | £371,369 | £1,511 |
See the full profile for Olanzapine or Perphenazine.