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Independent analysis of NHS open data
PharmaInsight

Oseltamivir phosphate vs Amantadine hydrochloride

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

Oseltamivir phosphate was dispensed 336.0× as often as Amantadine hydrochloride in May 2026 — 336 items versus 1 in England.

336items

Oseltamivir phosphate · May 2026

NHSBSA Prescription Cost Analysis

1items

Amantadine hydrochloride · May 2026

NHSBSA Prescription Cost Analysis

Figure 1. Oseltamivir phosphate versus Amantadine hydrochloride: national items dispensed by month

▬ Oseltamivir phosphate   ·   ╌ Amantadine hydrochloride

0 8k 15k Jan 2021 Nov 2021 Sep 2022 Jul 2023 May 2024 Mar 2025 May 2026 Amantadine hydro… 336 Jan 2021: 51 Feb 2021: 14 Mar 2021: 24 Apr 2021: 18 May 2021: 2 Jun 2021: 7 Jul 2021: 12 Aug 2021: 6 Sep 2021: 16 Oct 2021: 73 Nov 2021: 85 Dec 2021: 216 Jan 2022: 91 Feb 2022: 47 Mar 2022: 183 Apr 2022: 315 May 2022: 173 Jun 2022: 70 Jul 2022: 49 Aug 2022: 50 Sep 2022: 92 Oct 2022: 386 Nov 2022: 1k Dec 2022: 11k Jan 2023: 7k Feb 2023: 908 Mar 2023: 433 Apr 2023: 252 May 2023: 109 Jun 2023: 66 Jul 2023: 43 Aug 2023: 34 Sep 2023: 51 Oct 2023: 134 Nov 2023: 119 Dec 2023: 2k Jan 2024: 5k Feb 2024: 4k Mar 2024: 2k Apr 2024: 996 May 2024: 380 Jun 2024: 141 Jul 2024: 175 Aug 2024: 63 Sep 2024: 177 Oct 2024: 379 Nov 2024: 1k Dec 2024: 10k Jan 2025: 15k Feb 2025: 5k Mar 2025: 3k Apr 2025: 1k May 2025: 403 Jun 2025: 243 Jul 2025: 107 Aug 2025: 130 Sep 2025: 211 Oct 2025: 1k Nov 2025: 4k Dec 2025: 15k Jan 2026: 11k Feb 2026: 3k Mar 2026: 867 Apr 2026: 762 May 2026: 336

Source: NHSBSA Prescription Cost Analysis, to May 2026

Oseltamivir phosphate versus Amantadine hydrochloride, May 2026
Measure Oseltamivir phosphate Amantadine hydrochloride
Items, May 2026 336 1
Items, last 12 months 37,292 18
Net ingredient cost, May 2026 £5,074 £3

See the full profile for Oseltamivir phosphate or Amantadine hydrochloride.