Valproic acid vs Lamotrigine
National NHS prescribing compared (Prescription Cost Analysis)
Lamotrigine was dispensed 329.8× as often as Valproic acid in March 2026 — 387,481 items versus 1,175 in England.
1,175items
Valproic acid · March 2026
NHSBSA Prescription Cost Analysis
387,481items
Lamotrigine · March 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 March 2026
| Measure | Valproic acid | Lamotrigine |
|---|---|---|
| Items, March 2026 | 1,175 | 387,481 |
| Items, last 12 months | 13,727 | 4,445,117 |
| Net ingredient cost, March 2026 | £21,200 | £3,241,810 |
See the full profile for Valproic acid or Lamotrigine.