Olanzapine vs Promazine hydrochloride
National NHS prescribing compared (Prescription Cost Analysis)
Olanzapine was dispensed 32.4× as often as Promazine hydrochloride in March 2026 — 227,743 items versus 7,038 in England.
227,743items
Olanzapine · March 2026
NHSBSA Prescription Cost Analysis
7,038items
Promazine hydrochloride · March 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 March 2026
| Measure | Olanzapine | Promazine hydrochloride |
|---|---|---|
| Items, March 2026 | 227,743 | 7,038 |
| Items, last 12 months | 2,701,116 | 90,270 |
| Net ingredient cost, March 2026 | £371,369 | £470,309 |
See the full profile for Olanzapine or Promazine hydrochloride.