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Independent analysis of NHS open data
PharmaInsight

Glycerol vs Senna

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

Senna was dispensed 17.6× as often as Glycerol in May 2026 — 389,942 items versus 22,175 in England.

22,175items

Glycerol · May 2026

NHSBSA Prescription Cost Analysis

389,942items

Senna · May 2026

NHSBSA Prescription Cost Analysis

Figure 1. Glycerol versus Senna: national items dispensed by month

▬ Glycerol   ·   ╌ Senna

0 209k 418k Jan 2021 Nov 2021 Sep 2022 Jul 2023 May 2024 Mar 2025 May 2026 Senna 22,175 Jan 2021: 21k Feb 2021: 20k Mar 2021: 22k Apr 2021: 20k May 2021: 19k Jun 2021: 20k Jul 2021: 20k Aug 2021: 19k Sep 2021: 20k Oct 2021: 19k Nov 2021: 20k Dec 2021: 20k Jan 2022: 20k Feb 2022: 18k Mar 2022: 20k Apr 2022: 18k May 2022: 20k Jun 2022: 19k Jul 2022: 19k Aug 2022: 19k Sep 2022: 19k Oct 2022: 18k Nov 2022: 20k Dec 2022: 18k Jan 2023: 20k Feb 2023: 17k Mar 2023: 20k Apr 2023: 15k May 2023: 18k Jun 2023: 20k Jul 2023: 20k Aug 2023: 20k Sep 2023: 20k Oct 2023: 20k Nov 2023: 21k Dec 2023: 20k Jan 2024: 22k Feb 2024: 20k Mar 2024: 20k Apr 2024: 21k May 2024: 21k Jun 2024: 20k Jul 2024: 22k Aug 2024: 21k Sep 2024: 21k Oct 2024: 22k Nov 2024: 21k Dec 2024: 21k Jan 2025: 22k Feb 2025: 20k Mar 2025: 21k Apr 2025: 21k May 2025: 22k Jun 2025: 22k Jul 2025: 24k Aug 2025: 22k Sep 2025: 23k Oct 2025: 24k Nov 2025: 22k Dec 2025: 23k Jan 2026: 24k Feb 2026: 22k Mar 2026: 23k Apr 2026: 23k May 2026: 22k

Source: NHSBSA Prescription Cost Analysis, to May 2026

Glycerol versus Senna, May 2026
Measure Glycerol Senna
Items, May 2026 22,175 389,942
Items, last 12 months 272,852 4,750,042
Net ingredient cost, May 2026 £72,904 £383,435

See the full profile for Glycerol or Senna.