Boonreung, 34 and dubbed Snake Man, was rushed unconscious to Prai Bung Hospital near his home town, 350 miles northeast of Bangkok, Dr Wipa Praituan told Reuters.
"He was brought here with no signs of life. He wasn't breathing and his heart didn't beat," she said.
Boonreung was listed by the "Guinness Book of World Records" in 1998 after living with snakes in a glass box for seven days.
An epileptic, he went into convulsions after being bitten, but no one took him to the hospital initially because they thought he was suffering an epileptic fit.
Boonreung's father said he would give his son's 30 snakes to a zoo because nobody in the family dared deal with them.

Courtesy of Yahoo! News/Reuters