A MUM died after taking amphetamine, an inquest heard.
Joanne Drysdale, 34, was found in the front room of her Washington home by her teenage son, on October 5.
The inquest in Sunderland heard her frantic father Robert called 999 and attempted to resuscitate her after she was discovered.
Tests revealed the mum-of-one had taken more than four times the lethal dose of the class B drug, commonly called speed.
It was thought someone had been with her in the house at the time she took the drugs.
But Det Con Andrew Weighill, from Northumbria Police, said investigations had revealed nothing of the circumstances around Miss Drysdale’s death.
He told the hearing that the front door of her home in Tyne Gardens, Concord, had been left open, but she would often do that before she went to bed, so the family cat could get in.
Pathologist Dr Sidiq Tijani said Miss Drysdale was suffering from heart condition myocardial fibrosis and combined with amphetamine, it could have caused an irregular heart beat.
Dr Tijani gave the cause of death as amphetamine abuse.
Senior Coroner Derek Winter recorded a conclusion of death by misadventure.
Miss Drysdale worked for project management firm Norland in Ponteland where she was described as the “life and soul of the office”.
Speaking at the time of her death, mum Miriam, 62, said: “Joanne was such a bubbly person, she had a really infectious laugh. When she laughed, you couldn’t help but laugh with her.
Robert, who is also dad to Karen, 37, and Dawn, 39, said: “Joanne was really popular and the support we have had from everybody, especially her co-workers, has been fantastic.”