premed is for semester not 2 years,because you have to take summer ,is just like this ..24 credits per semester + summer 12 credits.this will take and average of a year and 1/2 ...and the med part another 3 and 1/2 year,that is your 5 years....in here you can take more credits in order to go with the program....the program has been designed for 5 years,total