Novichok poisoning victim Charlie Rowley has been discharged from hospital, three weeks after being exposed to the nerve agent, UK officials have confirmed.
Mr Rowley, 45, and his partner Dawn Sturgess, 44, collapsed at his house in Amesbury, southwest England, within hours of each other on June 30.
Ms Sturgess later died on July 8 and a murder inquiry has been launched.
Salisbury District Hospital said Mr Rowley had been through "an appalling experience most of us could never imagine".
Lorna Wilkinson, director of nursing at the hospital, said: "Today is a very welcome milestone in his recovery and all of us here at Salisbury hospital wish him well as he continues to get better.
"The progress he has made is a testament to the remarkable clinical team who have worked tirelessly supported by brilliant behind the scenes staff."
Ms Wilkinson said it was "also a day tinged with sadness for everyone" following the death of Ms Sturgess.
She added that Mr Rowley had been decontaminated to ensure the nerve agent could no longer affect him or anyone who comes into contact with him.
British police have previously said they had found a "small bottle" containing the Soviet-made nerve agent in Mr Rowley's home.
The incident happened four months after a former Russian spy Sergei Skripal and his daughter Yulia were poisoned with the same substance.
Both have since recovered.
The UK government has blamed Russia for the incident, but the country's authorities deny any involvement.
