Hi battersby, very sad situation, as dot says you can do no more, some people are so dependant on drugs they find it impossible to stop, she knows what will happen, she has been told it will kill her, I had a friend that was told the blood to his legs was so slow circulating,if he didn't stop it would mean amputation, he never stopped,the next time I saw him he was in a wheelchair, without legs, but still smoking, I find it hard to take in, but it is her choice, but it isn't easy seeing somebody you love kill themselves, all you can do is be there as the good friend you are, take care, Ray