for medicine it mentioned na kahit prescriptions sya basta hindi lalagpas ng 3 months supply ok lang ata
Traditional medicines
Some traditional medicines may contain endangered plant or animal products and these should be declared.
Prescription medicines
If you are carrying prescription medication you do not need to declare these provided you import no more than three months supply.
You should carry a letter of prescription from your doctor in the English language describing your medical condition.
If you are residing or visiting Australia for three months or longer and require ongoing medications, you should visit an Australian doctor to obtain your prescriptions.
If you are intending to have your medications sent through the mail or via courier, import permits will be required prior to importing the medications.
You should enquire about the import procedures before you arrive in Australia.
The Department of Health has more advice for travellers bringing medications into Australia.
No need to declare
You do not need to declare medications such as aspirin, paracetamol or Australian over the counter medications.
If you are carrying prescription medication you do not need to declare these provided you import no more than three months supply.
You should carry a letter or prescription from your doctor in the English language describing your medication and medical condition.
http://www.customs.gov.au/site/page4351.asp