Non-adherence to medications among patients with mental disorders attending tertiary care in Oman

Mandhar H. Al Maqbali, Maryam R. Almashrafi, Khalid A. Alrisi, Mohamed H. Albreiki, Waddah M. Asiri, Abdullah S. Aljaradi


Background: The primary aim of this study was to quantify the degree of non-adherence to medications among patients with mental health disorders attending a psychiatry clinic at a tertiary care hospital in Muscat, Oman.

Methods: All patients attending the psychiatry clinic during the study period were invited to participate in this cross-sectional study. Demographic data and factors related to medication adherence were gathered from the participants. The level of adherence to medication was measured using the Medication Adherence Rating Scale (MARS).

Results: A total of 251 patients were included in this study. The average MARS score was 5.7, indicating an overall poor level of compliance. Having an educational level of secondary school, a diagnosis of schizophrenia, having had a mental health condition for a longer time, previous history of admission to a psychiatry unit, lack of insight and poor therapeutic alliance were found to be significantly association with low level of adherence to psychiatric medications.

Conclusions: Non-adherence to medications is common among patients with mental health disorders. In order to mitigate the impact of medication non-adherence in a psychiatric setting, appropriate interventions are recommended to address and manage the factors related to poor medication adherence.  


Non-Adherence, Compliance, Antidepressants, Psychiatric medications, Mental health disorders, Oman

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