Heather,
I'm sorry that your difficult child is refusing medications. Has the psychiatrist explained the neurochemical imbalance that goes on in the brain - that it's a "physical" problem? Would it help difficult child to process that this medication is needed just like a diabetic would need insulin or a cancer patient chemo?
Just thinking out loud for you. I know you've not been feeling well so it would be hard - however, the world shuts down until medications are taken here. Literally. kt has learned & knows that if medications aren't taken nothing else will happen. It takes a great deal of energy to enforce - yet we need to do it less & less.
I'm glad that your difficult child has a therapist that knows her so well & how to handle her.