Promethazine hydrochloride vs White Birch pollen allergen extract
Promethazine hydrochloride was dispensed 21,014.5× as often as White Birch pollen allergen extract in March 2026 — 252,174 items versus 12 in England.
252,174items
Promethazine hydrochloride · March 2026
NHSBSA Prescription Cost Analysis
12items
White Birch pollen allergen extract · March 2026
NHSBSA Prescription Cost Analysis
Figure 1. Promethazine hydrochloride versus White Birch pollen allergen extract: national items dispensed by month
▬ Promethazine hydrochloride · ╌ White Birch pollen allergen extract
Source: NHSBSA Prescription Cost Analysis, to March 2026
| Measure | Promethazine hydrochloride | White Birch pollen allergen extract |
|---|---|---|
| Items, March 2026 | 252,174 | 12 |
| Items, last 12 months | 2,895,697 | 87 |
| Net ingredient cost, March 2026 | £466,476 | £1,362 |
See the full profile for Promethazine hydrochloride or White Birch pollen allergen extract.