Sixty-six children with hyperkinesia were treated with the Yizhi (wit-increasing) syrup, after which their scores on behavior dropped, their school records improved, and the rate of appearance of soft neurotic signs lowered, all three changes being significant, giving a total effectiveness rate of 84.8%. After the treatment, examination of the 24-hour urine showed significant increases in its content of norepinephrine (NE), dopamine (DA), 3-4 dihydroxy phenylacetic acid (DOPAC), cyclic adenosine monophosphate (cAMP), and creatinine (Cr).