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Independent analysis of NHS open data
PharmaInsight

Magnesium trisilicate vs Alginic acid compound preparations

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

Alginic acid compound preparations was dispensed 16,061.6× as often as Magnesium trisilicate in June 2026 — 369,416 items versus 23 in England.

23items

Magnesium trisilicate · June 2026

NHSBSA Prescription Cost Analysis

369,416items

Alginic acid compound preparations · June 2026

NHSBSA Prescription Cost Analysis

Figure 1. Magnesium trisilicate versus Alginic acid compound preparations: national items dispensed by month

▬ Magnesium trisilicate   ·   ╌ Alginic acid compound preparations

0 196k 392k Jan 2021 Nov 2021 Sep 2022 Jul 2023 May 2024 Mar 2025 Jun 2026 Alginic acid com… 23 Jan 2021: 249 Feb 2021: 237 Mar 2021: 244 Apr 2021: 238 May 2021: 209 Jun 2021: 195 Jul 2021: 199 Aug 2021: 161 Sep 2021: 187 Oct 2021: 136 Nov 2021: 207 Dec 2021: 166 Jan 2022: 131 Feb 2022: 167 Mar 2022: 180 Apr 2022: 152 May 2022: 142 Jun 2022: 153 Jul 2022: 153 Aug 2022: 138 Sep 2022: 156 Oct 2022: 149 Nov 2022: 139 Dec 2022: 138 Jan 2023: 136 Feb 2023: 130 Mar 2023: 131 Apr 2023: 118 May 2023: 144 Jun 2023: 117 Jul 2023: 106 Aug 2023: 88 Sep 2023: 87 Oct 2023: 78 Nov 2023: 73 Dec 2023: 76 Jan 2024: 71 Feb 2024: 50 Mar 2024: 60 Apr 2024: 57 May 2024: 50 Jun 2024: 52 Jul 2024: 46 Aug 2024: 49 Sep 2024: 40 Oct 2024: 39 Nov 2024: 36 Dec 2024: 34 Jan 2025: 42 Feb 2025: 24 Mar 2025: 11 Apr 2025: 8 May 2025: 29 Jun 2025: 19 Jul 2025: 21 Aug 2025: 16 Sep 2025: 33 Oct 2025: 14 Nov 2025: 11 Dec 2025: 13 Jan 2026: 17 Feb 2026: 23 Mar 2026: 13 Apr 2026: 9 May 2026: 15 Jun 2026: 23

Source: NHSBSA Prescription Cost Analysis, to June 2026

Magnesium trisilicate versus Alginic acid compound preparations, June 2026
Measure Magnesium trisilicate Alginic acid compound preparations
Items, June 2026 23 369,416
Items, last 12 months 208 4,409,958
Net ingredient cost, June 2026 £759 £3,450,118

See the full profile for Magnesium trisilicate or Alginic acid compound preparations.