"my son has used various stimulants for 5 yrs.  still struggling because of impulsivity &amp; super high metabolism, the docs wanted to add non-stimulants.  we started w/ intuiv, which dropped his bp way too low (75/43) so stopped after 2 wks.  tried clonidine ir and it worked great the 1st 2 days, then fine (not great, just fine).  the doc changed to kapvay for long-acting effects, but we stopped after 2 wks because he got awful insomnia (took 2-3 hrs to fall asleep instead of his usual 15 mins).  last night we went back to clonidine ir - he fell asleep quickly and slept great!  i give kapvay a 2 because it decreased his impulsivity a bit, but the insomnia was awful, he got more aggressive/emotional, and really affected him negatively."