• Internal medicine journal · Nov 2024

    Comparative Study

    Environmental impact of pressurised metered dose inhalers versus dry powder and soft mist inhalers at a tertiary Melbourne hospital.

    • Aiden Cushnahan, Benjamin Leaver, Ben Dunne, Jacqui Allman, and Megan Rees.
    • Department of Respiratory Medicine, Royal Melbourne Hospital, Melbourne, Victoria, Australia.
    • Intern Med J. 2024 Nov 1; 54 (11): 189819021898-1902.

    AbstractThe carbon footprint of devices to deliver inhaled respiratory medications has come into focus as climate change has been identified as a worldwide emergency. Metered dose inhalers (MDIs) contain hydrofluorocarbons that have significant global warming potential compared to dry powder inhalers (DPIs) and soft mist inhalers (SMIs), which do not use a propellant gas. A 12-month pharmacy inpatient dispensing audit demonstrated that inpatient MDI use significantly outweighed that of DPIs and SMIs and accounted for approximately 99% of inhaler-related greenhouse gas emissions at our hospital.© 2024 Royal Australasian College of Physicians.

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