My wife is 81 years old, has a broken back, and is on many prescription/non-prescription drugs. She seems quite lethargic and I am concerned the drugs may be interacting causing her problem. She is currently taking the following drugs and medications: Cozaar, Amlodipine, Nexium, Estroven, Aspirin, Calcium, Lutine, Synthoid, Fergon, Vit A, Calcium D, Vit E, Clondine, and Hydrocodine (My main concern). How can I be sure she is not harming herself with such administrations?