Isoniazid
Infections
Antibacterial drugs
BNF 0501090K0
Data updated May 2026
Download CSV
Isoniazid was ranked 1104th of 1,792 medicines by items in May 2026, with 192 items, down 19.3% on a year earlier.
192items
-19.3%
Dispensed in May 2026
3,199items
Rolling 12 months
£26,543
Net ingredient cost · May 2026
Figure 1. Isoniazid: national items dispensed by month
Source: NHSBSA Prescription Cost Analysis, to May 2026
Embed this chart
At a glance
- Therapeutic class Antibacterial drugs
- Presentations 3 shown
- Average cost / item £138.24
- Year on year Down 19.3% on a year earlier
What this is
Net ingredient cost is the list price before discounts and dispensing fees, not what the NHS finally pays.
Top presentations, May 2026
The individual products dispensed under Isoniazid this month.
| Presentation | BNF code | Items | Net ingredient cost |
|---|---|---|---|
| Isoniazid 100mg tablets | 0501090K0AAAIAI | 177 | £26,110 |
| Isoniazid 50mg tablets | 0501090K0AAAHAH | 14 | £394 |
| Isoniazid 50mg/5ml oral solution | 0501090K0AACUCU | 1 | £38 |
Source: NHSBSA Prescription Cost Analysis · to May 2026 OGL v3.0
Where Isoniazid is dispensed
The regions and dispensing practices with the highest Isoniazid volumes.
Top regions
Top dispensing practices
Regional volumes from NHSBSA Prescription Cost Analysis; practice volumes from NHS dispensing data.
Compare Isoniazid with
Other medicines in the same BNF section, by prescribing volume.