4th May 2024

A 32-year-old man has been displaying increasingly erratic behaviour over the last two weeks.

A 32-year-old man has been displaying increasingly erratic behaviour over the last two weeks. He reports feeling ‘on top of the world’, has been spending excessively, and his family notes that he has been getting very little sleep. He denies any drug use and has no significant past medical history.

Which is the most appropriate first-line treatment?