I'm so sorry that you and your husband had to go thru that. Sounds very scary for both of you. My husband is early in his Alzheimer's diagnosis, so I have been hoping this will help. He still has to have the PET scan before even making an appointment for his first infusion. He wants to try it. I hope the medicine doesn't make it worse. It's so hard to know what to do, since, as you said, the confusion and memory issues are already there. I am sending nothing but good thoughts to you and your husband.