With the encouragement of his friends and family, Charlie Sheen has checked himself into rehab. “Charlie Sheen has voluntarily entered an undisclosed rehabilitation center today. He is most grateful to all who have expressed their concern,” his rep confirmed to In Touch. Real Housewives of Beverly Hills stars and longtime friends of Charlie’s Adrienne Maloof and Paul Nassif were with Charlie, 45, before he made the decision to check into rehab. “As concerned friends, we encouraged Charlie to seek help and are happy that he is getting the care and treatment he needs,” the couple tells In Touch exclusively. Charlie’s sitcom Two and Half Men will be on production hiatus while Charlie seeks treatment at a facility in LA. “We are profoundly concerned for his health and well-being, and support his decision,” CBS and Warner Bros. Television said in a statement today. Charlie was hospitalized with severe abdominal pains after reportedly partying for two days with adult film actresses at his Beverly Hills, Calif., home.