"i was prescribed olanzapine as an off-label mood stabiliser for clinical depression. it took away all my positive emotions, leaving me feeling permanently &quot;grey&quot; and essentially soulless. i lost interest in all activities i previously found enjoyable.  in four months of &quot;treatment&quot; i&#039;d gained 4 stone, and couldn&#039;t stop eating. only now am i coming off this, a process which has been extremely difficult due to a resurgence of the condition the medicine was treating. "