Mefenamic acid vs Naproxen
National NHS prescribing compared (Prescription Cost Analysis)
Naproxen was dispensed 19.5× as often as Mefenamic acid in March 2026 — 635,908 items versus 32,622 in England.
32,622items
Mefenamic acid · March 2026
NHSBSA Prescription Cost Analysis
635,908items
Naproxen · March 2026
NHSBSA Prescription Cost Analysis
Figure 1. Mefenamic acid versus Naproxen: national items dispensed by month
▬ Mefenamic acid · ╌ Naproxen
Source: NHSBSA Prescription Cost Analysis, to March 2026
| Measure | Mefenamic acid | Naproxen |
|---|---|---|
| Items, March 2026 | 32,622 | 635,908 |
| Items, last 12 months | 350,746 | 7,541,183 |
| Net ingredient cost, March 2026 | £922,854 | £1,673,757 |
See the full profile for Mefenamic acid or Naproxen.