22 yr old man brought o office with change in behavior over last year. nine months ago, left college wanted to work on research without being disturbed, stopped goign out with friends, is uninterested in usual hobbies of playing and watching football, spends hours on his computer researching govt cover ups, stays up late, sleeps during the day, shower 1x weekly, accuses mother of being one of the black suits.
What drug should u give him? WHy?