Investigating attitudes and insights into the global warming impact of inhalers.

Abstract

INTRODUCTION:

Inhalers are commonly used in the management of respiratory diseases. The propellants used in pressurised metered dose inhalers (pMDIs) are potent greenhouse gases and carry a substantial global warming potential. Dry powder inhalers (DPIs) are propellant-free alternatives that have fewer consequences on the environment, while being equally effective. In this study, we assessed patients' and clinicians' attitudes towards choosing inhalers that have a lesser environmental impact.

METHODS:

Surveys of patients and practitioners were undertaken in primary and secondary care settings in Dunedin and Invercargill. Fifty-three patient and 16 practitioner responses were obtained.

RESULTS:

Sixty-four percent of patients were using pMDIs, while 53% were using DPIs. Sixty-nine percent of patients believed that the environment is an important consideration when switching inhalers. Sixty-three percent of practitioners were aware of the global warming potential of inhalers. Despite this, 56% of practitioners predominantly prescribe or recommend pMDIs. The 44% of practitioners who mostly prescribe DPIs were more comfortable doing so based on environmental impact alone.

CONCLUSION:

Most respondents believe global warming is an important issue and would consider changing their inhaler to a more environmentally friendly type. Many people were not aware that pressurised metered dose inhalers have a substantial carbon footprint. Greater awareness of their environmental impacts may encourage the use of inhalers with lower global warming potential.

• Authors: Matthew J Woodall, John Ma, Kate Emett, Amelia P E Hamblin, Katie Knowles, Tom Hyunwoo Lee, Wilson Mitchell, Wennarator Irae Ofoia, Letoe Renee Topeto, John D Dockerty, Robert J Hancox
• Journal: The New Zealand medical journal (N Z Med J) Vol. 136 Issue 1573 Pg. 94-105 (Apr 14 2023) ISSN: 1175-8716 [Electronic] New Zealand
• PMID: 37054459 (Publication Type: Journal Article)
• Copyright: © PMA.

Topics

• Humans
• Global Warming
• New Zealand
• Metered Dose Inhalers
• Dry Powder Inhalers
• Carbon Footprint
• Administration, Inhalation