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Quality improvement project assessing the feasibility of using canister weight to estimate remaining doses in a salbutamol pressurised metered-dose inhaler
  1. Robert S Beckett1,
  2. Annapurna Jagadish1,
  3. Will Carroll2,
  4. Francis J Gilchrist2,3
  1. 1 University Hospitals of North Midlands NHS Trust, Stoke-on-Trent, ST4 6QG, UK
  2. 2 Paediatric Respiratory Medicine, University Hospitals of North Midlands NHS Trust, Stoke-on-Trent, UK
  3. 3 Institute of Applied Clinical Science, Keele University, Keele, UK
  1. Correspondence to Dr Robert S Beckett, University Hospitals of North Midlands NHS Trust, Stoke-on-Trent, UK; robert.beckett{at}

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Pressurised metered-dose inhalers (pMDIs) containing salbutamol are an essential medicine for children with acute asthma. Salamol chlorofluorocarbon-free inhaler (‘Salamol’; IVAX Pharmaceuticals, Waterford, Ireland) is the most widely prescribed salbutamol pMDI in England (figure 1), costing the National Health Service £7.2 million in the 2022–23 financial year.1 In common with the other salbutamol pMDIs it lacks an integrated dose counter (IDC). Without an IDC, most children and families cannot accurately identify when a pMDI is empty.2 Thus, families may continue to use a pMDI that contains no active medicine, posing a safety risk in the event of an asthma attack. Additionally, patients may dispose of a pMDI that still contains medicine, worsening the already large environmental impact of these inhalers.3 Expanding on previous work using Ventolin pMDIs, we aimed to assess the feasibility of families …

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  • Contributors RSB was involved in all data collection and analysis. AJ was involved in survey data collection. RSB, AJ, WC and FJG contributed to project design and manuscript preparation. RSB is the guarantor.

  • Funding The authors have not declared a specific grant for this research from any funding agency in the public, commercial or not-for-profit sectors.

  • Competing interests None declared.

  • Provenance and peer review Not commissioned; externally peer reviewed.

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