[Inhaled loxapine for emergency treatment of agitated patients with borderline personality disorder : A series of five cases]

The Role of Inhaled Loxapine in the Treatment of Acute Agitation in Patients with Psychiatric Disorders: A Clinical Review

Loxapine is a first generation antipsychotic, belonging to the dibenzoxazepine class. Recently, loxapine has been reformulated at a lower dose, producing an inhaled powder that can be directly administered to the lungs to treat the agitation associated with psychiatric disorders, such as schizophrenia and bipolar disorder. Thus, the aim of this narrative and clinical mini-review was to evaluate the efficacy and tolerability of inhaled loxapine in the treatment of acute agitation in patients with psychiatric disorders. The efficacy of inhaled loxapine has been evaluated in one Phase II trial on patients with schizophrenia, and in two Phase III trials in patients with schizophrenia and bipolar disorder. Moreover, there are two published case series on patients with borderline personality disorder and dual diagnosis patients. Inhaled loxapine has proven to be effective and generally well tolerated when administered to agitated patients with schizophrenia and bipolar disorder. Two case series have suggested that inhaled loxapine may also be useful to treat agitation in patients with borderline personality disorder and with dual diagnosis, but further studies are needed to clarify this point. However, the administration of inhaled loxapine requires at least some kind of patient collaboration, and is not recommended in the treatment of severe agitation in totally uncooperative patients. Moreover, the drug-related risk of bronchospasm must always be kept in mind when planning to use inhaled loxapine, leading to a careful patient assessment prior to, and after, administration. Also, the higher costs of inhaled loxapine, when compared to oral and intramuscular medications, should be taken into account when selecting it for the treatment of agitation.

Patients with Borderline Personality Disorder in Emergency Departments

Borderline personality disorder (BPD) patients, when in crisis, are frequent visitors of emergency departments (EDs). When these patients exhibit symptoms such as aggressiveness, impulsivity, intense anxiety, severe depression, self-harm, and suicidal attempts or gestures, diagnosis, and treatment of the BPD becomes challenging for ED doctors. This review will, therefore, outline advice to physicians and health-care providers who face this challenging patient population in the EDs. Crisis intervention should be the first objective of clinicians when dealing with BPD in the emergency. For the patients with agitation, symptom-specific pharmacotherapy is usually recommended, while for non-agitated patients, short but intensive psychotherapy especially dialectical behavior therapy (DBT) has a positive effect. Although various psychotherapies, either alone or integrated, are preferred modes of treatment for this group of patients, the effects of psychotherapies on BPD outcomes are small to medium. Proper risk management along with developing a positive attitude and empathy toward these patients will help them in normalizing in an emergency setting after which treatment course can be decided.