My mother has been taking amitriptyline for years. Now she is taking metoprolol tartrate as well, since she recently suffered from congestive heart failure. Her blood pressure and heart rate were super super high. She now has a pacemaker as well. I ve noticed that she is much more confused now than ever before. I see on this web site that these two drugs are a risky combination. What are the chances that the combination of drugs is contributing to her confusion and more pronounced short term memory problems?