Demi Moore's was rushed to the hospital Monday night after the actress inhaled a dangerous amount of nitrous oxide, according to TMZ.
Sources said one of Demi's friends told paramedics Moore was doing whip-its, which is another name for inhaling nitrous oxide. The friend said she became upset when Demi had a reaction to a whip-it and lapsed into semiconsciousness. She allegedly had symptoms of a seizure and paramedics were called at 10:45 p.m.
TMZ reported Moore is being placed in a facility to for treatment of substance abuse.
Moore rep told TMZ "Because of the stresses in her life right now, Demi has chosen to seek professional assistance to treat her exhaustion and improve her overall health. She looks forward to getting well and is grateful for the support of her family and friends."
Friends of Moore were apparently concerned about her health and substance abuse issues before her hospitalization.
"Really, it was over the last year her friends saw a change," a source recently told People.com . The source noted the recent breakup up of her marriage to Ashton Kutcher and said the actress "wasn't sleeping as well, didn't seem to be eating and looked really gaunt."
As another source put it bluntly: "Demi is a mess."
TMZ reported that prescription drugs were a factor in Moore's emergency hospitalization Monday night. Moore, 49, has not commented publicly on the claims.
Sources close to both Moore and Kutcher told People.com Moore's prescription drug use was a contributing factor to the end of her marriage to Kutcher, 33.
"It was a sticking point for Ashton," a source said. "He wanted her to take care of herself and get a hold of things, and she wouldn't. Her family and friends have been really worried."
As a rising young star in the mid-80s, Moore underwent rehab for drug and alcohol abuse when director Joel Schumacher told her to get help before shooting "St. Elmo's Fire."
If any movie requires chemicals to get through it, that's the one.
But after years of sobriety, some of Moore's behavior troubled those close to the couple in recent years. In August 2010, Moore dirty-danced on stage at a Snoop Dogg show in Las Vegas. The impromptu stage show was an embarrassment to Kutcher, according to a friend.
Another friend said "(Ashton and Demi) both like to party, but she tends to wear it all over her. She can talk too much, get verbally abusive and weigh on your nerves."