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Independent analysis of NHS open data
PharmaInsight

Gabapentin vs Phenytoin sodium

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

Gabapentin was dispensed 16.9× as often as Phenytoin sodium in April 2026 — 609,298 items versus 36,027 in England.

609,298items

Gabapentin · April 2026

NHSBSA Prescription Cost Analysis

36,027items

Phenytoin sodium · April 2026

NHSBSA Prescription Cost Analysis

Figure 1. Gabapentin versus Phenytoin sodium: national items dispensed by month

▬ Gabapentin   ·   ╌ Phenytoin sodium

0 326k 653k Jan 2021 Nov 2021 Sep 2022 Jul 2023 May 2024 Mar 2025 Apr 2026 Phenytoin sodium 609,298 Jan 2021: 604k Feb 2021: 570k Mar 2021: 641k Apr 2021: 622k May 2021: 590k Jun 2021: 629k Jul 2021: 631k Aug 2021: 601k Sep 2021: 629k Oct 2021: 600k Nov 2021: 618k Dec 2021: 653k Jan 2022: 605k Feb 2022: 570k Mar 2022: 647k Apr 2022: 608k May 2022: 628k Jun 2022: 616k Jul 2022: 609k Aug 2022: 629k Sep 2022: 624k Oct 2022: 611k Nov 2022: 623k Dec 2022: 631k Jan 2023: 618k Feb 2023: 569k Mar 2023: 651k Apr 2023: 586k May 2023: 624k Jun 2023: 634k Jul 2023: 614k Aug 2023: 632k Sep 2023: 615k Oct 2023: 623k Nov 2023: 624k Dec 2023: 624k Jan 2024: 634k Feb 2024: 594k Mar 2024: 604k Apr 2024: 623k May 2024: 638k Jun 2024: 591k Jul 2024: 647k Aug 2024: 624k Sep 2024: 604k Oct 2024: 642k Nov 2024: 608k Dec 2024: 630k Jan 2025: 636k Feb 2025: 569k Mar 2025: 601k Apr 2025: 612k May 2025: 628k Jun 2025: 605k Jul 2025: 643k Aug 2025: 593k Sep 2025: 619k Oct 2025: 638k Nov 2025: 580k Dec 2025: 648k Jan 2026: 613k Feb 2026: 563k Mar 2026: 618k Apr 2026: 609k

Source: NHSBSA Prescription Cost Analysis, to April 2026

Gabapentin versus Phenytoin sodium, April 2026
Measure Gabapentin Phenytoin sodium
Items, April 2026 609,298 36,027
Items, last 12 months 7,356,812 448,550
Net ingredient cost, April 2026 £1,546,570 £425,178

See the full profile for Gabapentin or Phenytoin sodium.