Skip to content
Independent analysis of NHS open data
PharmaInsight

Zolpidem tartrate vs Chlordiazepoxide hydrochloride

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

Zolpidem tartrate was dispensed 44.7× as often as Chlordiazepoxide hydrochloride in June 2026 — 44,196 items versus 988 in England.

44,196items

Zolpidem tartrate · June 2026

NHSBSA Prescription Cost Analysis

988items

Chlordiazepoxide hydrochloride · June 2026

NHSBSA Prescription Cost Analysis

Figure 1. Zolpidem tartrate versus Chlordiazepoxide hydrochloride: national items dispensed by month

▬ Zolpidem tartrate   ·   ╌ Chlordiazepoxide hydrochloride

0 29k 59k Jan 2021 Nov 2021 Sep 2022 Jul 2023 May 2024 Mar 2025 Jun 2026 Chlordiazepoxide… 44,196 Jan 2021: 51k Feb 2021: 48k Mar 2021: 54k Apr 2021: 51k May 2021: 48k Jun 2021: 51k Jul 2021: 51k Aug 2021: 49k Sep 2021: 51k Oct 2021: 49k Nov 2021: 50k Dec 2021: 53k Jan 2022: 50k Feb 2022: 46k Mar 2022: 52k Apr 2022: 49k May 2022: 50k Jun 2022: 49k Jul 2022: 48k Aug 2022: 50k Sep 2022: 49k Oct 2022: 49k Nov 2022: 51k Dec 2022: 55k Jan 2023: 55k Feb 2023: 52k Mar 2023: 59k Apr 2023: 51k May 2023: 53k Jun 2023: 54k Jul 2023: 51k Aug 2023: 52k Sep 2023: 51k Oct 2023: 52k Nov 2023: 51k Dec 2023: 51k Jan 2024: 52k Feb 2024: 48k Mar 2024: 48k Apr 2024: 49k May 2024: 51k Jun 2024: 46k Jul 2024: 50k Aug 2024: 48k Sep 2024: 47k Oct 2024: 50k Nov 2024: 47k Dec 2024: 49k Jan 2025: 49k Feb 2025: 44k Mar 2025: 46k Apr 2025: 46k May 2025: 47k Jun 2025: 45k Jul 2025: 48k Aug 2025: 45k Sep 2025: 46k Oct 2025: 47k Nov 2025: 44k Dec 2025: 48k Jan 2026: 46k Feb 2026: 42k Mar 2026: 46k Apr 2026: 44k May 2026: 43k Jun 2026: 44k

Source: NHSBSA Prescription Cost Analysis, to June 2026

Zolpidem tartrate versus Chlordiazepoxide hydrochloride, June 2026
Measure Zolpidem tartrate Chlordiazepoxide hydrochloride
Items, June 2026 44,196 988
Items, last 12 months 541,844 19,593
Net ingredient cost, June 2026 £34,082 £31,931

See the full profile for Zolpidem tartrate or Chlordiazepoxide hydrochloride.