This is off topic, sort of, and don't want to make an excuse for this. There is no excuse for what she said.
But, Ambien is a messed up drug. I had a doctor prescribe me Ambien for sleep. I don't even like taking aspirin. I took it about a month and it worked for sleep great. But, there were many things I could not remember. I would have to put my phone up, as I would wake up, and there would be texts and pictures I would send to people that made no sense, and I had no recollection of them. I would "sleep walk" all over the house. I would rather have trouble sleeping, so I stopped taking the medicine. It was awful. And every time I read someone blaming Ambien for something they did, I always think, that could happen.
Edit: I did not send racist texts or pics to people