Understanding medication recycling practices in Canadian hospitals

Medication recycling within hospitals has proven financial and possible environmental benefits according to local evaluations done in British Columbia. Despite this, the extent of medication recycling in Canadian hospitals remains unclear in the literature.

To determine if Canadian hospitals recycle medications, provide an estimate of how much medication is recycled by dosage form, and identify medication recycling barriers through the distribution of a cross-sectional survey.

A nine-question survey was distributed to 171 hospital pharmacy departments across Canada that consented to complete the survey. The survey identified whether sites recycled unused medications, an estimate of how much is recycled based on dosage form, and barriers to recycling.

Of 62 respondents, the majority indicated they do have medication recycling procedures; however, the frequency of recycling is suboptimal (30-50% of medications are not recycled), and not all medication types are always recycled. Individually packaged oral tablets were most often recycled, and oral liquid medications were least often recycled. Many multi-dose medications were not tamper-proofed. Most respondents selected "sanitization/infection control" and "resource constraint" as reasons for not recycling all medications.

Among respondents, the proportion and type of unused medicines that are recycled varied. For sites that did not respond, this might suggest that medication recycling is not a priority. This could represent a missed opportunity to standardize practices and increase medication recycling in hospitals, both of which could represent a meaningful step towards responsible use of medications and reduction of negative impacts on human health and the environment.