Mark Agius’ response to our paper is helpful. People with borderline personality may have a number of co-morbid axis one disorders and it is right that these should be treated in accordance with recommended guidelines. In our article we argued that interpersonal problems that are central to personality disorder can lead to people being given inappropriate and unhelpful prescriptions. Interpersonal problems can also lead to people being denied interventions that may be of benefit. The work of Dr Agius and colleagues is important in highlighting that a minority of people with borderline personality disorder have coexisting bipolar disorder which may benefit from treatment with mood stabilizers.
Competing interests: No competing interests