Lamotrigine vs Phenobarbital
National NHS prescribing compared (Prescription Cost Analysis)
Lamotrigine was dispensed 34.9× as often as Phenobarbital in March 2026 — 387,481 items versus 11,099 in England.
387,481items
Lamotrigine · March 2026
NHSBSA Prescription Cost Analysis
11,099items
Phenobarbital · March 2026
NHSBSA Prescription Cost Analysis
Figure 1. Lamotrigine versus Phenobarbital: national items dispensed by month
▬ Lamotrigine · ╌ Phenobarbital
Source: NHSBSA Prescription Cost Analysis, to March 2026
| Measure | Lamotrigine | Phenobarbital |
|---|---|---|
| Items, March 2026 | 387,481 | 11,099 |
| Items, last 12 months | 4,445,117 | 135,209 |
| Net ingredient cost, March 2026 | £3,241,810 | £99,041 |
See the full profile for Lamotrigine or Phenobarbital.