This is not a sophisticated solution, but maybe your daughter will comply with a daily dose of prunes -- either 5-6 whole or chopped (any brand but I prefer Italian) or 8 oz. juice, for constipation caused by PD, does the trick for me. I also take a fair amount of Lamictal daily for depression with no side effects. I'm plugged into this group because close family members suffer from epilepsy. Challenges with your dear daughter are immense and I wish you my very best.