Personality disorders (PD) represent a group of more than 10 disorders, depending on the diagnostic classification used, but most research on pharmacological treatments deals with borderline PD. International guidelines consider the evidence for the usefulness of psychopharmacotherapy for PD limited and therefore, their major recommendation is to center this therapeutic approach for the treatment of the frequent psychiatric comorbidities. Indeed, current evidence favors psychotherapy compared to psychopharmacotherapy in the treatment of personality disorders (PD). However, antipsychotic drugs, antidepressants, anticonvulsants, and other psychotropic drugs are widely used, very frequently as combination treatments, despite not any of them has been introduced by national P. Baumann