Mefenamic acid vs Naproxen
National NHS prescribing compared (Prescription Cost Analysis)
Naproxen was dispensed 19.4× as often as Mefenamic acid in May 2026 — 607,094 items versus 31,242 in England.
31,242items
Mefenamic acid · May 2026
NHSBSA Prescription Cost Analysis
607,094items
Naproxen · May 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 May 2026
| Measure | Mefenamic acid | Naproxen |
|---|---|---|
| Items, May 2026 | 31,242 | 607,094 |
| Items, last 12 months | 360,191 | 7,498,192 |
| Net ingredient cost, May 2026 | £723,149 | £1,708,614 |
See the full profile for Mefenamic acid or Naproxen.