An Advanced Health Directive is a way to think about and plan what medical treatment you would like in the event that you cannot make decisions for yourself.
Information about advanced health directives and enduring powers of attorney in Queensland can be found here.
Information for other states can be found by doing an internet search.
Medication
Ask the pharmacist for an information sheet about any new medication, and whether there are any glaring contra-indications it would be helpful for you to know about.