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Independent analysis of NHS open data
PharmaInsight

Donepezil hydrochloride vs Memantine hydrochloride

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

Memantine hydrochloride was dispensed 1.2× as often as Donepezil hydrochloride in May 2026 — 201,179 items versus 171,759 in England.

171,759items

Donepezil hydrochloride · May 2026

NHSBSA Prescription Cost Analysis

201,179items

Memantine hydrochloride · May 2026

NHSBSA Prescription Cost Analysis

Figure 1. Donepezil hydrochloride versus Memantine hydrochloride: national items dispensed by month

▬ Donepezil hydrochloride   ·   ╌ Memantine hydrochloride

0 108k 215k Jan 2021 Nov 2021 Sep 2022 Jul 2023 May 2024 Mar 2025 May 2026 Memantine hydroc… 171,759 Jan 2021: 161k Feb 2021: 150k Mar 2021: 167k Apr 2021: 161k May 2021: 155k Jun 2021: 163k Jul 2021: 164k Aug 2021: 158k Sep 2021: 163k Oct 2021: 157k Nov 2021: 163k Dec 2021: 168k Jan 2022: 160k Feb 2022: 150k Mar 2022: 167k Apr 2022: 159k May 2022: 165k Jun 2022: 159k Jul 2022: 160k Aug 2022: 166k Sep 2022: 163k Oct 2022: 164k Nov 2022: 166k Dec 2022: 164k Jan 2023: 164k Feb 2023: 151k Mar 2023: 171k Apr 2023: 154k May 2023: 166k Jun 2023: 168k Jul 2023: 164k Aug 2023: 169k Sep 2023: 165k Oct 2023: 168k Nov 2023: 171k Dec 2023: 168k Jan 2024: 173k Feb 2024: 162k Mar 2024: 164k Apr 2024: 170k May 2024: 173k Jun 2024: 163k Jul 2024: 179k Aug 2024: 171k Sep 2024: 169k Oct 2024: 178k Nov 2024: 170k Dec 2024: 176k Jan 2025: 178k Feb 2025: 160k Mar 2025: 168k Apr 2025: 171k May 2025: 176k Jun 2025: 173k Jul 2025: 183k Aug 2025: 169k Sep 2025: 179k Oct 2025: 183k Nov 2025: 170k Dec 2025: 186k Jan 2026: 179k Feb 2026: 165k Mar 2026: 178k Apr 2026: 177k May 2026: 172k

Source: NHSBSA Prescription Cost Analysis, to May 2026

Donepezil hydrochloride versus Memantine hydrochloride, May 2026
Measure Donepezil hydrochloride Memantine hydrochloride
Items, May 2026 171,759 201,179
Items, last 12 months 2,113,359 2,421,374
Net ingredient cost, May 2026 £435,683 £604,964

See the full profile for Donepezil hydrochloride or Memantine hydrochloride.