Thanks for sharing your thoughts - a great conversation starter to big area of safety risk.
I would also add 'prescribing' 'to the list. This includes prescribing without access to up-to-date records, challenges of using hand-written prescriptions (which many outpatient clinics still do), issues at the transfer of prescribing care to GPs (whether shared-care or not) and the screening burden all this places on pharmacy teams to ensure a safe supply and well counselled and informed patients.