Propranolol
"My doctor had me on a regular dose of Inderal, and Valium as a back up if needed.  This was working fine.  When I went in for my annual visit and said everything was as usual, no better but no worse, she changed me to primidone.  I am on my 3rd month of this and feel like a basketcase.  Vertigo, stomach problems, vision problems, memory problems.  "