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Formulary optimization to reduce the carbon footprint of inhalers in a tertiary hospital
Iarlaith Doherty1, Ankit Yadav2, Marguerite Vaughan1
1Pharmacy Department, Tallaght University Hospital, Dublin, D24 NR0A, Ireland.
Objectives:
To reduce the carbon footprint of inhalers by formulary optimization.
Methods:
The carbon footprint of inhalers dispensed in 2023 was audited.The preferred salbutamol metered dose inhaler was changed in March 2024. After 5 months, a second audit was done to assess this intervention.
Key Findings:
The carbon footprint was 109 tonnes of CO2 equivalents in 2023. Metered dose inhalers accounted for 97.8% of emissions (107 t CO2 equivalents) but only 55% (n = 4149) of inhalers dispensed.Following the intervention, monthly emissions were significantly lower (P = .048).
Conclusions:
Inhaler formulary optimization significantly reduced the carbon footprint.
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