high blood pressure
"Clonidine has been the most effective drug I have used to keep my blood pressure under control.  My BP is now in the 130/80 range which is down from 155-160/110.  I do take it with a diuretic as well.  Dry mouth is definitely a symptom but over time it diminished for me.  Also, it does make me a little tired but not so much that I can't function.  I take my night dose before bed anyway.   Another little bonus is it seems to have eliminated my occasional RLS symptoms."