Psychotherapeutics treat conditions classified as abnormal behavior, thoughts and feelings that persist for a determined amount of time causing distress or emotional/physical impairment. Depression, anxiety, psychosis, ADHD and nicotine and drug dependence are among the conditions psychotherapeutics treat. Well-known brands such as Prozac™, Zoloft™ and Ritalin ™ have made this a $37 billion market. And according to Kalorama’s research, revenues from this area will grow more than 50% by 2010.