definition of Thorazine (chlorpromazine): Thorazine® Spansule® is the name for the sustained-release form. Chlorpromazine is available in tablet or injection form, and as suppositories. In children 1-12 years old, Thorazine® may be prescribed for the treatment of severe behavioral problems such as combativeness and/or explosive hyperexcitable behavior. It is also prescribed for short-term treatment of hyperactive children who show excessive motor activity and conduct disorders that may include impulsivity, difficulty sustaining attention, aggressiveness, mood swings, and poor frustration tolerance. Thorazine® is approved for the treatment of a number of other different conditions, including schizophrenia, severe nausea and vomiting, manic type of manic-depressive disorder.