Bilastine vs Promethazine hydrochloride
National NHS prescribing compared (Prescription Cost Analysis)
Promethazine hydrochloride was dispensed 509.3× as often as Bilastine in May 2026 — 234,806 items versus 461 in England.
461items
Bilastine · May 2026
NHSBSA Prescription Cost Analysis
234,806items
Promethazine hydrochloride · May 2026
NHSBSA Prescription Cost Analysis
Figure 1. Bilastine versus Promethazine hydrochloride: national items dispensed by month
▬ Bilastine · ╌ Promethazine hydrochloride
Source: NHSBSA Prescription Cost Analysis, to May 2026
| Measure | Bilastine | Promethazine hydrochloride |
|---|---|---|
| Items, May 2026 | 461 | 234,806 |
| Items, last 12 months | 4,952 | 2,893,211 |
| Net ingredient cost, May 2026 | £4,166 | £437,542 |
See the full profile for Bilastine or Promethazine hydrochloride.