Valproic acid
Valproic acid was ranked 861st of 1,796 medicines by items in May 2026, with 1,125 items, down 4.8% on a year earlier.
Dispensed in May 2026
Rolling 12 months
Net ingredient cost · May 2026
Figure 1. Valproic acid: national items dispensed by month
Source: NHSBSA Prescription Cost Analysis, to May 2026
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At a glance
- Therapeutic class Antiepileptic drugs
- Presentations 5 shown
- Average cost / item £17.08
- Year on year Down 4.8% on a year earlier
Top presentations, May 2026
The individual products dispensed under Valproic acid this month.
| Presentation | BNF code | Items | Net ingredient cost |
|---|---|---|---|
| Convulex 500mg gastro-resistant capsules | 040801020BBACAC | 685 | £9,159 |
| Convulex 300mg gastro-resistant capsules | 040801020BBABAB | 310 | £3,489 |
| Convulex 150mg gastro-resistant capsules | 040801020BBAAAA | 123 | £706 |
| Valproic acid 500mg/5ml oral liquid | 040801020AAAGAG | 6 | £5,641 |
| Valproic acid 250mg/5ml oral liquid | 040801020AAAFAF | 1 | £223 |
Source: NHSBSA Prescription Cost Analysis · to May 2026 OGL v3.0
Where Valproic acid is dispensed
The regions and dispensing practices with the highest Valproic acid volumes.
Top regions
Top dispensing practices
Regional volumes from NHSBSA Prescription Cost Analysis; practice volumes from NHS dispensing data.
Compare Valproic acid with
Other medicines in the same BNF section, by prescribing volume.
Download this data
The monthly series for Valproic acid is in this page's CSV. For the ranked national series across every medicine, with the method and caveats documented, see the most-prescribed medicines dataset in our open data catalogue.