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Independent analysis of NHS open data
PharmaInsight

Guaifenesin vs Dextromethorphan hydrobrom compound prepartions

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

Guaifenesin was dispensed 16.5× as often as Dextromethorphan hydrobrom compound prepartions in May 2026 — 99 items versus 6 in England.

99items

Guaifenesin · May 2026

NHSBSA Prescription Cost Analysis

6items

Dextromethorphan hydrobrom compound prepartions · May 2026

NHSBSA Prescription Cost Analysis

Figure 1. Guaifenesin versus Dextromethorphan hydrobrom compound prepartions: national items dispensed by month

▬ Guaifenesin   ·   ╌ Dextromethorphan hydrobrom compound prepartions

0 93 186 Jan 2021 Nov 2021 Sep 2022 Jul 2023 May 2024 Mar 2025 May 2026 Dextromethorphan… 99 Jan 2021: 78 Feb 2021: 86 Mar 2021: 67 Apr 2021: 71 May 2021: 61 Jun 2021: 89 Jul 2021: 68 Aug 2021: 75 Sep 2021: 87 Oct 2021: 163 Nov 2021: 152 Dec 2021: 152 Jan 2022: 154 Feb 2022: 108 Mar 2022: 164 Apr 2022: 108 May 2022: 102 Jun 2022: 90 Jul 2022: 98 Aug 2022: 64 Sep 2022: 72 Oct 2022: 96 Nov 2022: 118 Dec 2022: 158 Jan 2023: 133 Feb 2023: 109 Mar 2023: 115 Apr 2023: 99 May 2023: 95 Jun 2023: 73 Jul 2023: 70 Aug 2023: 68 Sep 2023: 93 Oct 2023: 133 Nov 2023: 118 Dec 2023: 163 Jan 2024: 180 Feb 2024: 145 Mar 2024: 156 Apr 2024: 122 May 2024: 141 Jun 2024: 102 Jul 2024: 115 Aug 2024: 93 Sep 2024: 109 Oct 2024: 165 Nov 2024: 158 Dec 2024: 167 Jan 2025: 186 Feb 2025: 117 Mar 2025: 135 Apr 2025: 113 May 2025: 94 Jun 2025: 91 Jul 2025: 78 Aug 2025: 80 Sep 2025: 108 Oct 2025: 126 Nov 2025: 139 Dec 2025: 161 Jan 2026: 148 Feb 2026: 125 Mar 2026: 139 Apr 2026: 122 May 2026: 99

Source: NHSBSA Prescription Cost Analysis, to May 2026

Guaifenesin versus Dextromethorphan hydrobrom compound prepartions, May 2026
Measure Guaifenesin Dextromethorphan hydrobrom compound prepartions
Items, May 2026 99 6
Items, last 12 months 1,416 53
Net ingredient cost, May 2026 £535 £31

See the full profile for Guaifenesin or Dextromethorphan hydrobrom compound prepartions.