My father is on glipizide 10 mg and januvia 100 mg, Dioxin 125 mg. and Megestrol Acetate 40 MG. He is confused, slurring speech, rapid weight loss, tremors, excessive tiredness and weakness, no appetite, unable to walk with out assistance and now needs to wear a diaper at all times. He has lost 20 lbs in 1 month. Doctors cant find anything wrong with him. They have done blood work, CT scans, etc. I am at a loss. I ffel like he should come off of the Januvia.