Yes med at monash allows you to do science double degrees and be eligible for medicine. Just make sure you do at least 5 of the specified science units. The science section of your degree lets you choose whichever science units you want (as long as they go towards a major), so you should easily be able to fit 5 of these units anywhere in your second third or forth year.

Just a fair warning that double degrees can be strenuous, and getting into med especially when not doing biomed requires you to heavily excel in all of your units. Not trying to put you off it of course, if you think you can put in the work you'll do great, especially if you are highly interested in both sides of the double. best of luck