Angela Scoular, 65, who starred in On Her Majesty's Secret Service, died in April. A Bond girl actress who had suffered from bowel cancer ended her life by drinking drain cleaner, Westminster Coroner's Court has heard.
Coroner Dr Fiona Wilcox recorded a verdict of "killing herself while the balance of her mind was disturbed".
Ms Scoular's death was not suicide, the coroner ruled.
The court heard Ms Scoular suffered non-survivable 40% burns to her throat, body and dietary tract. The cause of death was ingestion of a corrosive substance and multiple fractures, said Dr Wilcox.
The coroner heard the actress died two hours after drinking the liquid containing 90% sulphuric acid. She also poured the corrosive liquid on her body.
The inquest heard the actress was diagnosed with cancer in 2008 and was given the all clear after treatment and surgery, but months before her death she began to fear the return of the disease.
The actress, who lived in Maida Vale, west London, was battling alcoholism and depression and worried about debts. The actress used to drink between 150 and 210 units of alcohol a week.