Valproic acid vs Lamotrigine
National NHS prescribing compared (Prescription Cost Analysis)
Lamotrigine was dispensed 334.4× as often as Valproic acid in May 2026 — 376,214 items versus 1,125 in England.
1,125items
Valproic acid · May 2026
NHSBSA Prescription Cost Analysis
376,214items
Lamotrigine · May 2026
NHSBSA Prescription Cost Analysis
Figure 1. Valproic acid versus Lamotrigine: national items dispensed by month
▬ Valproic acid · ╌ Lamotrigine
Source: NHSBSA Prescription Cost Analysis, to May 2026
| Measure | Valproic acid | Lamotrigine |
|---|---|---|
| Items, May 2026 | 1,125 | 376,214 |
| Items, last 12 months | 13,702 | 4,485,415 |
| Net ingredient cost, May 2026 | £19,217 | £3,066,751 |
See the full profile for Valproic acid or Lamotrigine.