I'm sorry to inform you but your friend has suffered sudden sniffing death.
Effects inhalants can have on the body
If someone you know is taking inhalants call 911 immediately
Research has shown that most inhalants are extremely toxic. They can cause long lasting damage to the brain and other parts of the nervous system.
References: drugabuse.gov teens.drugabuse.gov
Sudden Sniffing Death can result from a single session of inhalant use. Inhalants can cause irregular and rapid heart rhythms and lead to fatal heart failure. SSD is especially associated with the use of butane, propane, and chemicals and aerosols.
Doctors will try to restart the heart of the victim, but every second matters.