http://www.med.monash.edu.au/medical/entry.html

Satisfactory completion of the Victorian Certificate of Education (VCE) or its equivalent, with a study score of at least 30 in Units 3 and 4 in each of English (any) and chemistry.

All applicants (other than international applicants) are required to sit an aptitude test: UMAT (Undergraduate Medicine and Health Sciences Admission Test).

For further information including ENTER and IB, see the MBBS “Entry requirements and applications – domestic students” in Coursefinder.

International applicants should refer to the MBBS “Entry requirements and applications – international students” in Coursefinder.

The site I’ve selected is very informational. It gives the prerequisites (above) and outlines the course of study (below). You can also perform your own searches with all the links they give. It’s a great site. Good luck!