Ulysses

A 24 year old man has schizophrenia that can only be controlled with Prolixon. He develops a form of cancer that is treated with chemotherapy; however, one of the drugs used in the chemotherapy interacts poorly with Prolixon, and so he must go off of the drug for the six weeks of treatment. The situation is fully explained to him and he agrees to the chemotherapy. After two weeks he is in a psychotic state so severe that he is curled up in his bed smearing feces on himself. He is also sick from the chemotherapy and refuses any further treatment. Must his care team end the treatment?