Olanzapine vs Promazine hydrochloride
National NHS prescribing compared (Prescription Cost Analysis)
Olanzapine was dispensed 32.5× as often as Promazine hydrochloride in April 2026 — 224,341 items versus 6,896 in England.
224,341items
Olanzapine · April 2026
NHSBSA Prescription Cost Analysis
6,896items
Promazine hydrochloride · April 2026
NHSBSA Prescription Cost Analysis
Figure 1. Olanzapine versus Promazine hydrochloride: national items dispensed by month
▬ Olanzapine · ╌ Promazine hydrochloride
Source: NHSBSA Prescription Cost Analysis, to April 2026
| Measure | Olanzapine | Promazine hydrochloride |
|---|---|---|
| Items, April 2026 | 224,341 | 6,896 |
| Items, last 12 months | 2,704,144 | 89,223 |
| Net ingredient cost, April 2026 | £456,177 | £474,612 |
See the full profile for Olanzapine or Promazine hydrochloride.