My mother had a heart stint back in Oct.07. The doctors have her on these meds. Avapro 150mg 1x1, 81

aspirn 1x1, Mag 64 2x1, Lasix 40mg 1x1, Betapace 80mg 2x1, Zocor 20mg 1x1, Plavix 75mg 1x1. Her blood pressure is more on the high then the normal.  Her ouput is more than her imput. She has continued to grow weak and I am concerned about dyhydration, toxciity from the use of Betapace and Lasix,  and other concerns of why Mag64.  I've talked to her doctor until I am blue in the face and all he wants to do is give her more meds.  She went to the ER complaining of her stomach and they found she had a heart blockage.  She still is continuing to complain about her stomach hurting, usually when she is hungry.  When she eats something the hurting goes away, but in two hours it starts again and she needs to eat. I have been her caregiver since Dec. 07 and I have researched and studied all I can and I am still searching for answers that her doctor doesn't seem to know or could care less. She is also on trazadone, seroquel, for depression and ativan for anxiety.   In conclusion her symtoms are weakness, fatigue, flushes, stomach discomfort, stiffness and burning in toes.  She is a diabetic but it is controlled by diet and her blood sugar is monitored by myself and it is between 95-l05. When she was in the hospital they gave her Betapace for her heart rythum because she developed afib and the Lasix because she was holding fluid.  She continues to take these medicines after 7 mos. The heart stint went well but after three days her hemo started going down and they couldn't find where she was bleeding until she developed a hemotoma in the area of her groin.  Had to have emergency surgery and the plug had come out of the artery.  She spent 5l days in the hospital,  went in with stomach pain and still is having stomach pain.  The doctors won't do anything because she is on Plavix and besides now she is so weak in body that I don't think she can stand any more procedures.  She is 85 and she has always been in good health until now.  I need some advice on these meds.  If I just had something to tell her doctor I believe he would do it but I have just exhausted myself trying to find answers and I know this is not my responsiblity because that is why we have a doctor but I want to help my Mom so badly.  Thank you for taking the time to read this lengthly question and I hope you can shred some light on my situation.  This is only the tip of the iceberg.