Olanzapine vs Valproic acid
National NHS prescribing compared (Prescription Cost Analysis)
Olanzapine was dispensed 5.9× as often as Valproic acid in March 2026 — 227,743 items versus 38,826 in England.
227,743items
Olanzapine · March 2026
NHSBSA Prescription Cost Analysis
38,826items
Valproic acid · March 2026
NHSBSA Prescription Cost Analysis
Figure 1. Olanzapine versus Valproic acid: national items dispensed by month
▬ Olanzapine · ╌ Valproic acid
Source: NHSBSA Prescription Cost Analysis, to March 2026
| Measure | Olanzapine | Valproic acid |
|---|---|---|
| Items, March 2026 | 227,743 | 38,826 |
| Items, last 12 months | 2,701,116 | 475,228 |
| Net ingredient cost, March 2026 | £371,369 | £612,026 |
See the full profile for Olanzapine or Valproic acid.