Sodium benzoate vs Sodium phenylbutyrate
National NHS prescribing compared (Prescription Cost Analysis)
Sodium benzoate was dispensed 30.0× as often as Sodium phenylbutyrate in March 2026 — 30 items versus 1 in England.
30items
Sodium benzoate · March 2026
NHSBSA Prescription Cost Analysis
1items
Sodium phenylbutyrate · March 2026
NHSBSA Prescription Cost Analysis
Figure 1. Sodium benzoate versus Sodium phenylbutyrate: national items dispensed by month
▬ Sodium benzoate · ╌ Sodium phenylbutyrate
Source: NHSBSA Prescription Cost Analysis, to March 2026
| Measure | Sodium benzoate | Sodium phenylbutyrate |
|---|---|---|
| Items, March 2026 | 30 | 1 |
| Items, last 12 months | 280 | 42 |
| Net ingredient cost, March 2026 | £10,484 | £493 |
See the full profile for Sodium benzoate or Sodium phenylbutyrate.