Olanzapine vs Perphenazine
National NHS prescribing compared (Prescription Cost Analysis)
Olanzapine was dispensed 36,284.7× as often as Perphenazine in May 2026 — 217,708 items versus 6 in England.
217,708items
Olanzapine · May 2026
NHSBSA Prescription Cost Analysis
6items
Perphenazine · May 2026
NHSBSA Prescription Cost Analysis
Figure 1. Olanzapine versus Perphenazine: national items dispensed by month
▬ Olanzapine · ╌ Perphenazine
Source: NHSBSA Prescription Cost Analysis, to May 2026
| Measure | Olanzapine | Perphenazine |
|---|---|---|
| Items, May 2026 | 217,708 | 6 |
| Items, last 12 months | 2,693,982 | 90 |
| Net ingredient cost, May 2026 | £440,809 | £930 |
See the full profile for Olanzapine or Perphenazine.