Attorney Yale Galanter said Brooke Sheen was running a fever of 105 degrees when she was taken to Sherman Oaks Hospital early Wednesday morning and placed in the intensive care unit.
"She has an infection as the result of oral surgery earlier in the week," said Galanter. "They're concerned and trying to get it under control."
Brooke Sheen was at her home in Los Angeles when she developed a dental problem that required oral surgery.
By late Wednesday afternoon, Galanter said she had received heavy doses of antibiotics to control the infection, which was improving, but had developed pneumonia and remained in intensive care.
"She won't be going home today," Galanter said.
Meanwhile, Galanter said the prosecutor's office in Aspen, Colo., had acquiesced to Charlie Sheen's request to visit his wife in the hospital. The Sheens are under a court order to stay away from each other and have no communication.
A judge on Wednesday granted Sheen's request to modify the protection order so he could visit his wife in the hospital, but that change only applies while she is hospitalized for medical treatment. A no-harassment clause remains in effect, and if Brooke Sheen asks her husband to leave, he must.
That order was to be the subject of a hearing on Friday, but it was uncertain if it would go forward. Galanter said Brooke Sheen would probably not be recovered sufficiently to travel to Aspen. She had already obtained a postponement of the hearing because she was to undergo the surgery.
Galanter, who was reached in Aspen, said he has asked that the hearing be postponed again.
He said a status conference is scheduled for Thursday morning at the Aspen court to decide whether the Friday hearing will go forward.
A message left Wednesday with Charlie Sheen's spokesman, Stan Rosenfield, was not immediately returned.
Both of the Sheens had been expected to attend the hearing in Aspen, where police were called to their home on Christmas Day. They were expected to ask Pitkin County District Court Judge James Boyd to throw out or revise a protection order that prevents the couple from contacting each other. Such protection orders are standard in cases of alleged domestic violence.
Prosecutors oppose the request.
A police officer's arrest affidavit quoted Brooke Sheen as saying the actor pinned her on a bed while holding a knife to her throat and told her that she "better be in fear." The officer said Brooke Sheen reported her husband also told her that he could hire ex-police "who know how to get the job done and they won't leave any trace."
Charlie Sheen denies threatening his wife. His initial court appearance on the charges is now scheduled for Feb. 8. Galanter earlier asked the court to allow his client to participate in this week's hearing by telephone because of the oral surgery. Boyd denied the motion but did reschedule it.
The Sheens, who have twin baby sons, have said they want to reconcile.
Charlie Sheen, 44, stars in the CBS comedy "Two and a Half Men."
