I just began taking lexapro about 4 weeks ago. First I took 10 mg for two days but was so zonked I cut back to 5. After 2 weeks I started alternating 5 & 10. Now I am finally up to 10 mg a day (for a week). My depression has improved no doubt but I have some increased anxiety and some insomnia but not every night. I have been tired during the day and had to take naps a couple of days midday. I take the med in the a.m. but does anyone take it at night?