UBC Faculty Research and Publications

Reducing the adverse environmental impacts of prescribing Therapeutics Initiative (University of British Columbia)

Description

Background: The climate crisis makes it essential that clinicians consider the environmental impacts of prescribing. Canada’s healthcare system contributes 4.6% of total greenhouse gas (GHG) emissions, of which 1.2% are from drugs. Pharmaceutical production, packaging, and disposal of medications contribute to pollution and GHG emissions. Pressurized metered dose inhalers (pMDIs) are especially harmful due to their hydrofluorocarbon propellants. The overuse of medications further compounds these impacts. Aims: This Therapeutics Letter highlights the environmental impacts of prescribing and offers strategies for reducing these impacts. It emphasizes the importance of deprescribing, conservative prescribing, and the role played by patient education and involvement in medication choices. Recommendations: Clinicians should consider environmental impacts when prescribing and choose lower impact or non-pharmacologic therapies when possible. Employ conservative prescribing, review medications regularly and deprescribe where appropriate. Reduce the overprescribing of proton pump inhibitors and antibiotics and consider ways of minimizing packaging waste. Switch patients from pMDIs to dry powder inhalers to reduce GHG emissions. Educating patients on environmental impacts and sustainable practices such as medication disposal to further mitigate climate impacts.

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Attribution-NonCommercial-NoDerivatives 4.0 International