https://www.selleckchem.com/products/AZD1152-HQPA.html Narcissistic personality disorder is a pleomorphic entity that requires the psychodynamically oriented therapist to tailor the approach to the characteristics of the individual patient. Psychodynamic principles encompass a broad range of interventions depending on the patient's specific characteristics. The therapist's interventions range from interpretation of the transference to supportive approaches that emphasize empathic validation and direct advice. In the absence of systematic data on these variations, this article attempts to offer clinically based principles. Several themes are emphasized the experience of shame, the predictable transference-countertransference developments, the role of comorbidity with other personality disorders and traits, and the approach to resistances.This article identifies guiding principles in effective psychotherapies of patients with narcissistic personality disorder (NPD) and cautions against some common pitfalls. Individual psychotherapies of NPD patients were examined by both authors, who tested whether or not some principles, recommended in the literature, effectively promote these therapies and help these patients in moving forward with their lives and with effective therapy use. The authors identify a number of principles that were associated with more positive therapy development helping patients identify goals and direction of their therapies, promoting a sense of agency, promoting a shift of focus to sense of vulnerability, and anticipating difficulty in developing and maintaining the treatment alliance. Common mistakes in these treatments are engaging in a power struggle with the patient, overindulging the grandiosity of the patient, directly challenging the grandiosity of the patient, and ignoring treatment-interfering behaviors. Identification of principles of effective therapies with NPD patients can help with the development of more effective treatment approache