I used to take it everyday, now it's sort of as needed basis. But, what worked for me, was to take 1/2 when I first woke up with my morning coffee. Then I would take the other half around noon.

That helped keep me awake longer & I didn't have the racing heart that you sometimes get. After I got used to it (always takes me awhile to get used to new drugs), it worked really well.

Hang in there a couple more weeks & hopefully it will help. Good luck.

Michelle