What can you tell me about Salvia?

My wife and I own an alternative care facility for the mentally ill. We had a 22 yr. old that was diagnosed as paranoid schizophrenia; he seemed radically worse in a short time, medication changes were futile. He began having hallucinations so extreme (one day he tore a hole in a plaster wall with his hands) that we lost him to Community Corrections. I saw an episode on Dr. Phil, Googled and looked it up in Wikipedia. I would have liked knowing about this sooner; it makes allot of sense our 22 yr. old was doing this. I am in fear for the others there are 15 total in the house. I need to know all I can about Salvia, please help with any information.