However it caused my heart to really race and beat hard (at around 5 mg) in addition to insomnia. Like Ritalin, it also worked very well for my symptoms.
Next I tried Strattera
which did not worked and only caused side effects (80 mg/dy).
I thought perhaps I had an underlying heart condition making me so sensitive to stimulants, so I stopped all medications for nearly 2 years and was checked out by a cardiologist (2 actually).