"i started taking this about a month ago because my anxiety gradually got so bad that i didn&#039;t sleep for a week. the first few nights it worked amazingly but it was difficult to wake up but then i&#039;d be very alert and awake all day. however, my doctor told me to take it twenty minutes before bed and i would not feel the effect until much later. i actually took my dose about 40 mins ago and i&#039;m just now starting to relax."