"Should they try CBD or marijuana products with both CBD and THC?"
Alz usually responds to low doses on the order of 15 mg per day. Clients are usually older so can be more sensitive to doses than younger people. In one very successful case topical application of a 10mg/ml cream was used. Dementia case Teresa, with slides 105s https://youtu.be/AIXAiGx4OOk . She has Down’s Syndrome but she was a very sweet lady until onset of Alz which is quite common in this condition. Her sister last week told me that Teresa became so aggressive that the sister feared for her own life. That reversed with just a few weeks of topical CBD.