The General Medical Council and a Crown Office unit are investigating the circumstances surrounding the death of a Dundee woman while waiting for bone marrow treatment.
Sandra Laing believes her sister, Carole Stewart, received too many anti-psychotic drugs and that symptoms of her illness were ignored.
Mrs Laing says that before she was placed in the Carseview psychiatric unit in Dundee in June 2010 her sister was “full of life”, but after just a few months in the hospital she was “a vegetable”.
Mrs Stewart suffered from bipolar disorder as well as and kidney and liver disease.
She was over-medicated, and pleas to examine her physical health were ignored, her sister said.
In August last year, Mrs Stewart was transferred to Ninewells Hospital, where bone marrow failure was identified. She died, aged 51, while awaiting treatment.
“To me the whole thing contributed to her dying up in Ninewells when she should have been home,” said Mrs Laing.
The General Medical Council is investigating the psychiatrist who treated Mrs Stewart, while the Scottish Fatalities Investigation Unit, a special Crown Office unit which provides specialist advice for procurators fiscal, is examining the circumstances of her death.
NHS Tayside said it is aware of the complaints.