... Diltiazem, Norvasc. It is my only anti-hypertensive. I have a sedentary desk job (UM nurse) and feel like a zombie. As I report to work at 1030 am, I am going to try to set my alarm at 0430,take my first dose. Then prolong my second does until 6pm as I am off at 7pm. My drive time is close to an hour. Does ANYONE have any suggestions/help?