Best Friend An Addict. Not Fun

 last time I saw her she took two anbien while driving. In her car was me and her thirteen year old daughter, and she tried to drive after she swallowed two Anbien. I told ner pull over and finally got her topull over to let me drive. She has a strong personality so it is very hard to get her to listen. She is not dead but I feel like I have already lost her! In high school she was Prom Queen. What would you do?