Welcome to the forum! My husband is 80 and he has had LBD for probably about seven years now. I am 64 and am his full time caregiver. He also had a very bad reaction to Risperdal. Also to Seroquel. I have been tempted to give him some Xanax in the evening [I have a prescription for myself that I use for emergencies] but am always afraid of his reactions to medications. Last night he was just impossible to deal with--angry, agitated, fixated on certain delusions and hallucinations [strangers in the house] that nothing would distract him from. Bedtime was such a blessing!
Anyway, this is a great forum. There is also a spouse-caregiver LBD forum on Yahoo. It's amazing to me how many of us are quite a bit younger than our husbands! Could it be a risk factor?