It's possible and people have worked thruout the program but I wouldn't really recommend it, at least for the first 2 semesters.
In the beginning you will have probably 1 full day, or 2 half days of lecture, and then one full day of lab. A little bit later on, it will probably be one full day of lecture, 2 full days of clinical (AM or PM), and then additional lab days occasionally. There is a lot of homework and studying to do on days off as for most of the program you have 1-2 big exams weekly