Lamotrigine vs Primidone
National NHS prescribing compared (Prescription Cost Analysis)
Lamotrigine was dispensed 22.1× as often as Primidone in March 2026 — 387,481 items versus 17,516 in England.
387,481items
Lamotrigine · March 2026
NHSBSA Prescription Cost Analysis
17,516items
Primidone · March 2026
NHSBSA Prescription Cost Analysis
Figure 1. Lamotrigine versus Primidone: national items dispensed by month
▬ Lamotrigine · ╌ Primidone
Source: NHSBSA Prescription Cost Analysis, to March 2026
| Measure | Lamotrigine | Primidone |
|---|---|---|
| Items, March 2026 | 387,481 | 17,516 |
| Items, last 12 months | 4,445,117 | 201,081 |
| Net ingredient cost, March 2026 | £3,241,810 | £1,213,250 |
See the full profile for Lamotrigine or Primidone.