Promethazine hydrochloride vs Alimemazine tartrate
National NHS prescribing compared (Prescription Cost Analysis)
Promethazine hydrochloride was dispensed 120.7× as often as Alimemazine tartrate in May 2026 — 234,806 items versus 1,946 in England.
234,806items
Promethazine hydrochloride · May 2026
NHSBSA Prescription Cost Analysis
1,946items
Alimemazine tartrate · May 2026
NHSBSA Prescription Cost Analysis
Figure 1. Promethazine hydrochloride versus Alimemazine tartrate: national items dispensed by month
▬ Promethazine hydrochloride · ╌ Alimemazine tartrate
Source: NHSBSA Prescription Cost Analysis, to May 2026
| Measure | Promethazine hydrochloride | Alimemazine tartrate |
|---|---|---|
| Items, May 2026 | 234,806 | 1,946 |
| Items, last 12 months | 2,912,461 | 24,231 |
| Net ingredient cost, May 2026 | £437,542 | £423,999 |
See the full profile for Promethazine hydrochloride or Alimemazine tartrate.