Isoniazid vs Nitrofurantoin
National NHS prescribing compared (Prescription Cost Analysis)
Nitrofurantoin was dispensed 1,738.2× as often as Isoniazid in May 2026 — 333,741 items versus 192 in England.
192items
Isoniazid · May 2026
NHSBSA Prescription Cost Analysis
333,741items
Nitrofurantoin · May 2026
NHSBSA Prescription Cost Analysis
Figure 1. Isoniazid versus Nitrofurantoin: national items dispensed by month
▬ Isoniazid · ╌ Nitrofurantoin
Source: NHSBSA Prescription Cost Analysis, to May 2026
| Measure | Isoniazid | Nitrofurantoin |
|---|---|---|
| Items, May 2026 | 192 | 333,741 |
| Items, last 12 months | 3,199 | 4,416,505 |
| Net ingredient cost, May 2026 | £26,543 | £2,268,636 |
See the full profile for Isoniazid or Nitrofurantoin.