I had a pt last night who was +for decreased BP and HR according to the tilt table test. The doctor wrote he had vaso depressive syncope and started him on clonidine. I asked very experienced nurses what was vaso depressive syncope and why would he be started on clonidine...seeing clonidine lowers HR,BP and can cause orthostatic hypotension. I have not been able to find any helpful websites online to answer my questions. Can anyone help me understand what is actually going on with this dx and why clonidine was the drug of choice.