Chlorphenamine maleate vs Promethazine hydrochloride
Promethazine hydrochloride was dispensed 3.8× as often as Chlorphenamine maleate in March 2026 — 252,174 items versus 66,089 in England.
66,089items
Chlorphenamine maleate · March 2026
NHSBSA Prescription Cost Analysis
252,174items
Promethazine hydrochloride · March 2026
NHSBSA Prescription Cost Analysis
Figure 1. Chlorphenamine maleate versus Promethazine hydrochloride: national items dispensed by month
▬ Chlorphenamine maleate · ╌ Promethazine hydrochloride
Source: NHSBSA Prescription Cost Analysis, to March 2026
| Measure | Chlorphenamine maleate | Promethazine hydrochloride |
|---|---|---|
| Items, March 2026 | 66,089 | 252,174 |
| Items, last 12 months | 773,775 | 2,895,697 |
| Net ingredient cost, March 2026 | £419,254 | £466,476 |
See the full profile for Chlorphenamine maleate or Promethazine hydrochloride.