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Independent analysis of NHS open data
PharmaInsight

Potassium chloride vs Water for injection

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

Water for injection was dispensed 9,366.0× as often as Potassium chloride in May 2026 — 18,732 items versus 2 in England.

2items

Potassium chloride · May 2026

NHSBSA Prescription Cost Analysis

18,732items

Water for injection · May 2026

NHSBSA Prescription Cost Analysis

Figure 1. Potassium chloride versus Water for injection: national items dispensed by month

▬ Potassium chloride   ·   ╌ Water for injection

0 11k 22k Jan 2021 Jun 2021 Nov 2021 Jun 2022 Jul 2023 Sep 2025 May 2026 Water for inject… 2 Jan 2021: 1 Feb 2021: 1 Apr 2021: 1 May 2021: 1 Jun 2021: 1 Aug 2021: 1 Sep 2021: 1 Oct 2021: 1 Nov 2021: 2 Mar 2022: 1 Apr 2022: 1 May 2022: 2 Jun 2022: 1 Jul 2022: 1 Oct 2022: 1 Nov 2022: 3 Jul 2023: 1 Jan 2024: 2 Dec 2024: 1 Jul 2025: 1 Sep 2025: 1 Oct 2025: 1 Nov 2025: 1 Jan 2026: 1 May 2026: 2

Source: NHSBSA Prescription Cost Analysis, to May 2026

Potassium chloride versus Water for injection, May 2026
Measure Potassium chloride Water for injection
Items, May 2026 2 18,732
Items, last 12 months 16 234,480
Net ingredient cost, May 2026 £30 £157,351

See the full profile for Potassium chloride or Water for injection.