I appreciate the true concern, but I've come to believe that the "really" dangerous territory were the months I spent while on Effexor, with perfect cardiovascular readings, but riddled with contemplations of my death and suicide. Adjusting arrythmyias seems like a walk in the park...lol...Incidently, I've been under close cardiac care for 24 yrs. while on imipramine, as well as a psychologist, and soon a psycopharmacologist, so the question of balancing a beta-blocker and a tricyclic was simply for yet one more informed opinion. I would still be interested in your best guess..???
I think you have the ablility to understand the effects of toxins in the human body and you should get a book from barnes and Nobles book store called the Cure for all Diseases. By Dr. Hulda Rehger Clark. It only costs $21.95. She tells about scientific studies she has proven the illnesses we get are caused from parisites and pollution. Some from the things we eat and use on our bodies on a daily basis. If you want to help your self get this book.
I am actually afraid to answer this question because it seems you have taken over your own medication management, and in this case, I believe you should be closely supervised by a cardiologist. You are in dangerous territory.