my husband is a diabetic with congestive heart and pad is currently on many meds such as amlodipine,lasix,isosorbide coreg hydralazine lipitor plavis clonidine lantus gabapentin percocet and every time he goes to a hospital more med is prescribed he has no chest pain has had edema and just recently is now being prescribed ranolazine he does get shortness of breath and just recently had trouble laying down horizontally where i taken him to hosp and he was given lasix iv i am concerened that he maybe getting overmedicating how do i know when too much medicine is being prescribed.