my father in law aged 73 years undergone bypass in 2008 and cataract surgery in 2010 presently suffering from high urea and cretinine level. regularly on medicines such as zyrolic, doxobid, pan D, riconia g, dytor 10 mg and 20 mg and escorpin. what should we do. we are regularly consulting nephrologist and cardiologist. what more to do as he is facing problems as loss of apetite, loss of memory and swelling etc.