Coal tar vs Benzalkonium chloride
National NHS prescribing compared (Prescription Cost Analysis)
Coal tar was dispensed 7.9× as often as Benzalkonium chloride in March 2026 — 38,220 items versus 4,808 in England.
38,220items
Coal tar · March 2026
NHSBSA Prescription Cost Analysis
4,808items
Benzalkonium chloride · March 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 March 2026
| Measure | Coal tar | Benzalkonium chloride |
|---|---|---|
| Items, March 2026 | 38,220 | 4,808 |
| Items, last 12 months | 465,335 | 56,364 |
| Net ingredient cost, March 2026 | £256,572 | £32,927 |
See the full profile for Coal tar or Benzalkonium chloride.