Promethazine hydrochloride vs White Birch pollen allergen extract
National NHS prescribing compared (Prescription Cost Analysis)
Promethazine hydrochloride was dispensed 11,162.4× as often as White Birch pollen allergen extract in June 2026 — 245,572 items versus 22 in England.
245,572items
Promethazine hydrochloride · June 2026
NHSBSA Prescription Cost Analysis
22items
White Birch pollen allergen extract · June 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 June 2026
| Measure | Promethazine hydrochloride | White Birch pollen allergen extract |
|---|---|---|
| Items, June 2026 | 245,572 | 22 |
| Items, last 12 months | 2,926,614 | 136 |
| Net ingredient cost, June 2026 | £453,976 | £2,884 |
See the full profile for Promethazine hydrochloride or White Birch pollen allergen extract.