<p>MD program is faster and you graduate with a large debt. Do it if you want to work as a doctor.</p>
<p>MD-PhD program is funded, but it is a massive time commitment. Both the MD and the PhD aspects of it are interconnected; you do something like 1 year MD, 1 year PhD, etc, until you graduate, so you can’t just leave early with one degree or the other. Best for academic work in medicine.</p>