Sometimes patients also stockpile medications, including through consulting multiple doctors, known as "doctor shopping". For example, they might do this to obtain extra supplies of addictive pain medication.
How does it work right now?
Currently, there is no centralised, mandatory register that records all of the medicines a person is prescribed and dispensed.
Instead, prescribing information may be siloed in hospital and aged care systems, general practice records and those of online telehealth providers such as Instant Scripts, 13SICK and Hola Health.
This can prevent any single doctor or pharmacist from having clear, comprehensive information about a patient's medications.
Some health-care practitioner and pharmacy bodies have criticised the online prescribing industry, in particular, for contributing to inappropriate prescribing and medication misuse.