"phenothiazines are used to treat serious mental and emotional disorders, including schizophrenia and other psychotic disorders. some are used also to control agitation in certain patients, severe nausea and vomiting, severe hiccups, and moderate to severe pain in some hospitalized patients. chlorpromazine is used also in the treatment of certain types of porphyria, and with other medicines in the treatment of tetanus. phenothiazines may also be used for other conditions as determined by your doctor.phenothiazines may cause unwanted, unattractive, and uncontrolled face or body movements that may not go away when you stop taking the medicine. they may also cause other serious unwanted effects. you and your doctor should talk about the good this medicine will do as well as the risks of using it. also, your doctor should look for early signs of these effects at regular visits. your doctor may be able to stop or decrease some unwanted effects, if they do occur, by changing your dose or by making other changes in your treatment.these medicines are available only with your doctor's prescription.levoprome(r) (methotrimeprazine) is no longer available in the united states. at the end of may 1998, immunex corporation stopped marketing it.once a medicine has been approved for marketing for a certain use, experience may show that it also is useful for other medical problems. although these uses are not included in product labeling, phenothiazines are used in certain patients with the following medical conditions: chronic neurogenic pain (certain continuing pain conditions)huntington's chorea (hereditary movement disorder)migraine headaches