MIL has advancing Alzheimer's/Dementia and is getting more and more difficult in the afternoons/evenings. Often suspicious of everyone, off in her own world, refusing to take meds and/or eat dinner. Of course FIL who also has advanced dementia and short term memory issues thinks this is brand new every day. She is in a memory care home, and he lives 2 doors down in AL. He visits her 2-3 times per day. She is fine and pleasant in the mornings, and early afternoons, but by mid afternoon the "wheels fall off" and she becomes negative, complaining, nasty, and uncooperative. Of course she has zero memory of it the next day, and often he doesn't either. Are there medications that can help with this? It seems worse with the days growing shorter. Any other suggestions?