Could you possibly call the doctor she sees to get her anti depressant & possibly intervene via giving her doctor useful information? My mother's BP got severe when her bf of 11 years was hauled away to prison. It was like night & day & the mother I knew when I was growing up was no longer present. Even with her prior drug addiction, everything took a turn for the worst... I wish I had called her doctor sooner, but I was only a young teenager. I didn't understand the HIPPA laws well enough & thought I wouldn't be able to talk to the doctor at all-- Little did I know that you can't be discouraged from giving the doctor important information about her condition outside of the office!! It really is unfortunate when you love someone, but see them doing really stupid things & you can't help them.