A baby boy has become the first documented case of a person overdosing on marijuana, claim two Colorado doctors.

The findings were reported by Drs. Thomas Nappe and Christopher Hoyte in the medical journal "Clinical Practice and Cases in Emergency Medicine".

The doctors wrote that an 11-month-old boy, who died in 2015, was the first person to perish from an overdose of marijuana.

According to their findings, the baby was found to have overdosed on tetrahydrocannabinol (THC) after all other possible causes had been ruled out.

In 2015, the boy was rushed to the emergency room after suffering a seizure. The child's guardian told doctors that the baby had been retching and was "irritable" and lethargic in the days leading up to being brought to the ER.

Hoyte and Nappe were among a team of doctors to examine the boy, but could not make a diagnosis as to what was causing his illness.

After becoming unresponsive, the child was given a breathing tube. His heart eventually stopped and he was unable to be resuscitated.

Blood and urine tests detected high levels of THC in the child, while doctors also discovered he was suffering from myocarditis, a condition which causes the heart muscles to become inflamed and shut down.

They believe the high THC levels caused the myocarditis, as the ailment is very rare in children.

"The only thing that we found was marijuana. High concentrations of marijuana in his blood. And that's the only thing we found," Hoyte told local news outlet KUSA. "The kid never really got better. And just one thing led to another and the kid ended up with a heart stopped. And the kid stopped breathing and died."

Source: nydailynews.com