LHRH and casodex side effects??

OK my Dad is 80, had a radical prostectomy 16 years ago with radiation therapy.  Now his psa has gone up again. The Doctors started him on 5 days of casodex then gave him zoledex(hormone shot) on the 6th day and he will continue to take casodex every day as well as his coumadin for his heart. Withinn 5 days of the CAB he had severe back pain, fatigue, weakness, hot flashes and psychosis at night. This has been for 4 days now. He says he feels like he is going nuts. He has no appetite either. Is this all normal and are there remedies for these side effects. Will they go away with time?He also says he feels like he has an ulcer. Could this be possible after 2 weeks of treatment?? Never has had stomach problems before. Can...