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Independent analysis of NHS open data
PharmaInsight

Clomethiazole edisilate vs Zopiclone

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

Zopiclone was dispensed 78,237.3× as often as Clomethiazole edisilate in May 2026 — 312,949 items versus 4 in England.

4items

Clomethiazole edisilate · May 2026

NHSBSA Prescription Cost Analysis

312,949items

Zopiclone · May 2026

NHSBSA Prescription Cost Analysis

Figure 1. Clomethiazole edisilate versus Zopiclone: national items dispensed by month

▬ Clomethiazole edisilate   ·   ╌ Zopiclone

0 220k 441k Jan 2021 Nov 2021 Sep 2022 Jul 2023 May 2024 Mar 2025 May 2026 Zopiclone 4 Jan 2021: 41 Feb 2021: 42 Mar 2021: 58 Apr 2021: 43 May 2021: 44 Jun 2021: 47 Jul 2021: 43 Aug 2021: 42 Sep 2021: 58 Oct 2021: 75 Nov 2021: 63 Dec 2021: 85 Jan 2022: 76 Feb 2022: 71 Mar 2022: 82 Apr 2022: 79 May 2022: 85 Jun 2022: 72 Jul 2022: 67 Aug 2022: 72 Sep 2022: 64 Oct 2022: 70 Nov 2022: 77 Dec 2022: 81 Jan 2023: 64 Feb 2023: 59 Mar 2023: 81 Apr 2023: 65 May 2023: 50 Jun 2023: 55 Jul 2023: 57 Aug 2023: 59 Sep 2023: 59 Oct 2023: 54 Nov 2023: 62 Dec 2023: 56 Jan 2024: 55 Feb 2024: 58 Mar 2024: 70 Apr 2024: 113 May 2024: 175 Jun 2024: 115 Jul 2024: 43 Aug 2024: 68 Sep 2024: 62 Oct 2024: 66 Nov 2024: 49 Dec 2024: 57 Jan 2025: 42 Feb 2025: 49 Mar 2025: 10 Apr 2025: 79 May 2025: 53 Jun 2025: 36 Jul 2025: 9 Aug 2025: 12 Sep 2025: 10 Oct 2025: 12 Nov 2025: 4 Dec 2025: 4 Jan 2026: 9 Feb 2026: 6 Mar 2026: 8 Apr 2026: 6 May 2026: 4

Source: NHSBSA Prescription Cost Analysis, to May 2026

Clomethiazole edisilate versus Zopiclone, May 2026
Measure Clomethiazole edisilate Zopiclone
Items, May 2026 4 312,949
Items, last 12 months 120 4,042,460
Net ingredient cost, May 2026 £198 £147,665

See the full profile for Clomethiazole edisilate or Zopiclone.