Coal tar vs Benzalkonium chloride
National NHS prescribing compared (Prescription Cost Analysis)
Coal tar was dispensed 7.8× as often as Benzalkonium chloride in May 2026 — 36,066 items versus 4,641 in England.
36,066items
Coal tar · May 2026
NHSBSA Prescription Cost Analysis
4,641items
Benzalkonium chloride · May 2026
NHSBSA Prescription Cost Analysis
Figure 1. Coal tar versus Benzalkonium chloride: national items dispensed by month
▬ Coal tar · ╌ Benzalkonium chloride
Source: NHSBSA Prescription Cost Analysis, to May 2026
| Measure | Coal tar | Benzalkonium chloride |
|---|---|---|
| Items, May 2026 | 36,066 | 4,641 |
| Items, last 12 months | 455,386 | 56,404 |
| Net ingredient cost, May 2026 | £242,318 | £31,735 |
See the full profile for Coal tar or Benzalkonium chloride.