Chlorphenamine maleate vs Diphenhydramine hydrochloride
National NHS prescribing compared (Prescription Cost Analysis)
Chlorphenamine maleate was dispensed 29.8× as often as Diphenhydramine hydrochloride in May 2026 — 66,137 items versus 2,222 in England.
66,137items
Chlorphenamine maleate · May 2026
NHSBSA Prescription Cost Analysis
2,222items
Diphenhydramine hydrochloride · May 2026
NHSBSA Prescription Cost Analysis
Figure 1. Chlorphenamine maleate versus Diphenhydramine hydrochloride: national items dispensed by month
▬ Chlorphenamine maleate · ╌ Diphenhydramine hydrochloride
Source: NHSBSA Prescription Cost Analysis, to May 2026
| Measure | Chlorphenamine maleate | Diphenhydramine hydrochloride |
|---|---|---|
| Items, May 2026 | 66,137 | 2,222 |
| Items, last 12 months | 763,427 | 28,714 |
| Net ingredient cost, May 2026 | £432,963 | £11,170 |
See the full profile for Chlorphenamine maleate or Diphenhydramine hydrochloride.