The family of a London man who died after he was incorrectly prescribed a combination of drugs has been awarded £500,000 in damages.
Theo Osgerby, 29, died at his home in May 2005 after suffering a seizure.
Deputy Judge Richard Lissack QC said at London's High Court Mr Osgerby was the victim of "error after error".
The court had heard Mr Osgerby should not have been prescribed the drug Zyban as he was already taking the anti-depressant Citalopram.
His widow Sarah had sued two GPs over treatment given at the Woodland Surgery in Greenwich, south-east London.
Mrs Osgerby's counsel Owain Thomas said a computer-generated warning should have come up when the anti-depressant Zyban was prescribed as an aid for giving up smoking as Mr Osgerby was already taking Citalopram.
He said that the warning was "either ignored or completely misinterpreted."
Mr Thomas said that there had been admissions of breach of duty and negligence by the two doctors concerned.
"These negligent failures cost this young man his life and cost this family dear," he added.
Philippa Whipple QC, for the GPs, said that Mr Osgerby's death was a tragedy for Mrs Osgerby, 36, and his 15-year-old daughter Elise, from Kentish Town, north-west London, for Mr Osgerby's brother, Jay, and for everyone who knew him.
Judge Lissack said: "Tragic is an overused word but it seems to apply in this case for the error upon error that was made in his care, which has been accepted by the defendants in these proceedings."