Guaifenesin
Guaifenesin was ranked 1221st of 1,796 medicines by items in May 2026, with 99 items.
Dispensed in May 2026
Rolling 12 months
Net ingredient cost · May 2026
Figure 1. Guaifenesin: national items dispensed by month
Source: NHSBSA Prescription Cost Analysis, to May 2026
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At a glance
- Therapeutic class Cough preparations
- Presentations 6 shown
- Average cost / item £5.40
Top presentations, May 2026
The individual products dispensed under Guaifenesin this month.
| Presentation | BNF code | Items | Net ingredient cost |
|---|---|---|---|
| Robitussin Chesty Cough 100mg/5ml oral solution | 0309020G0BBACAB | 71 | £397 |
| Covonia Chesty Cough Sugar Free syrup | 0309020G0BVAAAE | 12 | £60 |
| Benylin Chesty Coughs Non-Drowsy oral solution | 0309020G0BNACAP | 9 | £44 |
| Benylin Mucus Cough Max Honey & Lemon Flavour 100mg/5ml syr | 0309020G0BNAHAB | 5 | £26 |
| Benylin Children's Chesty Coughs 50mg/5ml oral solution | 0309020G0BNADAN | 1 | £3 |
| Benylin Mucus Cough Max Menthol 100mg/5ml oral solution | 0309020G0BNAGAB | 1 | £5 |
Source: NHSBSA Prescription Cost Analysis · to May 2026 OGL v3.0
Where Guaifenesin is dispensed
The regions and dispensing practices with the highest Guaifenesin volumes.
Top regions
Top dispensing practices
Regional volumes from NHSBSA Prescription Cost Analysis; practice volumes from NHS dispensing data.
Compare Guaifenesin with
Other medicines in the same BNF section, by prescribing volume.
Download this data
The monthly series for Guaifenesin is in this page's CSV. For the ranked national series across every medicine, with the method and caveats documented, see the most-prescribed medicines dataset in our open data catalogue.