Off-label prescribing in people with recurrent depressive disorder attending a community mental health service

Aims and method: We investigated deliberate and inadvertent off-label prescribing in individuals with recurrent depressive disorder attending a community mental health service. Results: Off-label prescribing occurred in 87 of 226 people with recurrent depressive disorder (38%) and involved antipsychotic agents (41), maintenance benzodiazepine use (33), antidepressant polypharmacy (28), high-dose antidepressants (19) and use of antidepressants outside of the recommended age range (16). Off-label prescribing was part of a deliberate and documented treatment plan for a half (n = 43) of individuals. Participants receiving off-label prescribing had higher total Health of the Nation Outcome Scale (HoNOS) scores, were attending more frequently and were older and had more chronic illness duration. Inadvertent off-label prescribing was related to higher scores on the behavioural disturbance subscale of the HoNOS. Clinical implications: Off-label prescribing is a common phenomenon in people with recurrent depressive disorder and relates to greater illness severity and chronicity. Although off-label prescribing is frequently deliberate, in many cases it is undesirable and unplanned.