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Independent analysis of NHS open data
PharmaInsight

Ketoprofen vs Diclofenac diethyl

National NHS prescribing compared (Prescription Cost Analysis)
Data updated May 2026

Diclofenac diethyl was dispensed 19.4× as often as Ketoprofen in May 2026 — 226,102 items versus 11,651 in England.

11,651items

Ketoprofen · May 2026

NHSBSA Prescription Cost Analysis

226,102items

Diclofenac diethyl · May 2026

NHSBSA Prescription Cost Analysis

Figure 1. Ketoprofen versus Diclofenac diethyl: national items dispensed by month

▬ Ketoprofen   ·   ╌ Diclofenac diethyl

0 119k 238k Jan 2021 Nov 2021 Sep 2022 Jul 2023 May 2024 Mar 2025 May 2026 Diclofenac dieth… 11,651 Jan 2021: 12k Feb 2021: 11k Mar 2021: 13k Apr 2021: 12k May 2021: 12k Jun 2021: 13k Jul 2021: 12k Aug 2021: 12k Sep 2021: 12k Oct 2021: 12k Nov 2021: 12k Dec 2021: 12k Jan 2022: 11k Feb 2022: 11k Mar 2022: 13k Apr 2022: 12k May 2022: 12k Jun 2022: 12k Jul 2022: 11k Aug 2022: 12k Sep 2022: 12k Oct 2022: 12k Nov 2022: 12k Dec 2022: 12k Jan 2023: 11k Feb 2023: 11k Mar 2023: 12k Apr 2023: 11k May 2023: 12k Jun 2023: 12k Jul 2023: 12k Aug 2023: 12k Sep 2023: 12k Oct 2023: 12k Nov 2023: 12k Dec 2023: 11k Jan 2024: 12k Feb 2024: 11k Mar 2024: 11k Apr 2024: 12k May 2024: 12k Jun 2024: 12k Jul 2024: 13k Aug 2024: 12k Sep 2024: 12k Oct 2024: 12k Nov 2024: 12k Dec 2024: 12k Jan 2025: 12k Feb 2025: 11k Mar 2025: 12k Apr 2025: 12k May 2025: 12k Jun 2025: 12k Jul 2025: 13k Aug 2025: 12k Sep 2025: 12k Oct 2025: 12k Nov 2025: 12k Dec 2025: 12k Jan 2026: 12k Feb 2026: 11k Mar 2026: 12k Apr 2026: 12k May 2026: 12k

Source: NHSBSA Prescription Cost Analysis, to May 2026

Ketoprofen versus Diclofenac diethyl, May 2026
Measure Ketoprofen Diclofenac diethyl
Items, May 2026 11,651 226,102
Items, last 12 months 143,218 2,719,143
Net ingredient cost, May 2026 £115,568 £1,889,765

See the full profile for Ketoprofen or Diclofenac diethyl.