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Independent analysis of NHS open data
PharmaInsight

Stiripentol

Central Nervous System Antiepileptic drugs BNF 0408010AG
Data updated May 2026 Download CSV

Stiripentol was ranked 1105th of 1,792 medicines by items in May 2026, with 256 items, up 4.1% on a year earlier.

256items +4.1%

Dispensed in May 2026

3,164items

Rolling 12 months

£172,221

Net ingredient cost · May 2026

Figure 1. Stiripentol: national items dispensed by month

0 145 290 Jan 2021 Nov 2021 Sep 2022 Jul 2023 May 2024 Mar 2025 May 2026 256 Jan 2021: 250 Feb 2021: 222 Mar 2021: 233 Apr 2021: 226 May 2021: 226 Jun 2021: 207 Jul 2021: 262 Aug 2021: 215 Sep 2021: 235 Oct 2021: 228 Nov 2021: 258 Dec 2021: 240 Jan 2022: 248 Feb 2022: 245 Mar 2022: 237 Apr 2022: 245 May 2022: 247 Jun 2022: 240 Jul 2022: 254 Aug 2022: 234 Sep 2022: 243 Oct 2022: 251 Nov 2022: 228 Dec 2022: 245 Jan 2023: 243 Feb 2023: 241 Mar 2023: 257 Apr 2023: 208 May 2023: 253 Jun 2023: 247 Jul 2023: 273 Aug 2023: 234 Sep 2023: 235 Oct 2023: 246 Nov 2023: 232 Dec 2023: 266 Jan 2024: 230 Feb 2024: 237 Mar 2024: 249 Apr 2024: 273 May 2024: 252 Jun 2024: 259 Jul 2024: 290 Aug 2024: 220 Sep 2024: 258 Oct 2024: 274 Nov 2024: 244 Dec 2024: 236 Jan 2025: 273 Feb 2025: 239 Mar 2025: 259 Apr 2025: 228 May 2025: 246 Jun 2025: 253 Jul 2025: 286 Aug 2025: 247 Sep 2025: 264 Oct 2025: 275 Nov 2025: 259 Dec 2025: 287 Jan 2026: 257 Feb 2026: 249 Mar 2026: 284 Apr 2026: 247 May 2026: 256

Source: NHSBSA Prescription Cost Analysis, to May 2026

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At a glance

  • Therapeutic class Antiepileptic drugs
  • Presentations 4 shown
  • Average cost / item £672.74
  • Year on year Up 4.1% on a year earlier
What this is
Net ingredient cost is the list price before discounts and dispensing fees, not what the NHS finally pays.

Top presentations, May 2026

The individual products dispensed under Stiripentol this month.

Presentations of Stiripentol, May 2026
Presentation BNF code Items Net ingredient cost
Diacomit 500mg oral powder sachets 0408010AGBBADAD 90 £75,593
Diacomit 250mg oral powder sachets 0408010AGBBACAC 84 £46,443
Diacomit 500mg capsules 0408010AGBBABAB 43 £33,721
Diacomit 250mg capsules 0408010AGBBAAAA 39 £16,463

Source: NHSBSA Prescription Cost Analysis · to May 2026 OGL v3.0

Where Stiripentol is dispensed

The regions and dispensing practices with the highest Stiripentol volumes.

Regional volumes from NHSBSA Prescription Cost Analysis; practice volumes from NHS dispensing data.

Compare Stiripentol with

Other medicines in the same BNF section, by prescribing volume.