Chlorphenamine maleate vs Diphenhydramine hydrochloride
National NHS prescribing compared (Prescription Cost Analysis)
Chlorphenamine maleate was dispensed 28.8× as often as Diphenhydramine hydrochloride in April 2026 — 67,744 items versus 2,350 in England.
67,744items
Chlorphenamine maleate · April 2026
NHSBSA Prescription Cost Analysis
2,350items
Diphenhydramine hydrochloride · April 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 April 2026
| Measure | Chlorphenamine maleate | Diphenhydramine hydrochloride |
|---|---|---|
| Items, April 2026 | 67,744 | 2,350 |
| Items, last 12 months | 771,246 | 28,933 |
| Net ingredient cost, April 2026 | £440,052 | £11,561 |
See the full profile for Chlorphenamine maleate or Diphenhydramine hydrochloride.