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Independent analysis of NHS open data
PharmaInsight

Losartan potassium vs Olmesartan medoxomil/hydrochlorothiazide

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

Losartan potassium was dispensed 1,562.8× as often as Olmesartan medoxomil/hydrochlorothiazide in May 2026 — 1,159,574 items versus 742 in England.

1,159,574items

Losartan potassium · May 2026

NHSBSA Prescription Cost Analysis

742items

Olmesartan medoxomil/hydrochlorothiazide · May 2026

NHSBSA Prescription Cost Analysis

Figure 1. Losartan potassium versus Olmesartan medoxomil/hydrochlorothiazide: national items dispensed by month

▬ Losartan potassium   ·   ╌ Olmesartan medoxomil/hydrochlorothiazide

0 607k 1.2m Jan 2021 Nov 2021 Sep 2022 Jul 2023 May 2024 Mar 2025 May 2026 Olmesartan medox… 1,159,574 Jan 2021: 865k Feb 2021: 816k Mar 2021: 916k Apr 2021: 889k May 2021: 851k Jun 2021: 910k Jul 2021: 907k Aug 2021: 872k Sep 2021: 907k Oct 2021: 869k Nov 2021: 906k Dec 2021: 953k Jan 2022: 892k Feb 2022: 840k Mar 2022: 950k Apr 2022: 896k May 2022: 938k Jun 2022: 911k Jul 2022: 914k Aug 2022: 944k Sep 2022: 936k Oct 2022: 926k Nov 2022: 950k Dec 2022: 967k Jan 2023: 953k Feb 2023: 883k Mar 2023: 1m Apr 2023: 916k May 2023: 983k Jun 2023: 998k Jul 2023: 974k Aug 2023: 1m Sep 2023: 984k Oct 2023: 1m Nov 2023: 1m Dec 2023: 1m Jan 2024: 1m Feb 2024: 982k Mar 2024: 1m Apr 2024: 1m May 2024: 1.1m Jun 2024: 1m Jul 2024: 1.1m Aug 2024: 1.1m Sep 2024: 1m Oct 2024: 1.1m Nov 2024: 1.1m Dec 2024: 1.1m Jan 2025: 1.1m Feb 2025: 1m Mar 2025: 1.1m Apr 2025: 1.1m May 2025: 1.1m Jun 2025: 1.1m Jul 2025: 1.2m Aug 2025: 1.1m Sep 2025: 1.1m Oct 2025: 1.2m Nov 2025: 1.1m Dec 2025: 1.2m Jan 2026: 1.2m Feb 2026: 1.1m Mar 2026: 1.2m Apr 2026: 1.2m May 2026: 1.2m

Source: NHSBSA Prescription Cost Analysis, to May 2026

Losartan potassium versus Olmesartan medoxomil/hydrochlorothiazide, May 2026
Measure Losartan potassium Olmesartan medoxomil/hydrochlorothiazide
Items, May 2026 1,159,574 742
Items, last 12 months 13,763,714 10,190
Net ingredient cost, May 2026 £1,044,905 £13,717

See the full profile for Losartan potassium or Olmesartan medoxomil/hydrochlorothiazide.