Adverse Drug Reaction Monitoring of Antidepressants in the Psychiatry Outpatients Department of a Tertiary Care Teaching Hospital

Abstract

Depression is a prevalent mental disorder and the 4(th) leading cause of disability in the world as per the World Health Organization (WHO). The adverse Drug Reactions (ADRs) to antidepressants are common and they can lead to a non compliance or even a discontinuation of the therapy. This study entitled us to monitor the ADR profile of the antidepressants in a tertiary care teaching hospital. A longitudinal, observational study was conducted in the Outpatients Department of Psychiatry in S.C.B. Medical College and Hospital l in collaboration with the I.M.S and SUM Hospital. A total of 160 cases were studied for ADRs by using a predesigned CDSCO form. The patients who were on TCAs, SSRIs and newer antidepressants (SNRIs/NDRIs) were assessed by doing physical examinations, neurological examinations and relevant lab tests. The causalities were assessed by the criteria of the WHO-UMC. The analysis of ADRs was done by using the Chi square test. Among the 160 patients who took antidepressants, 26.87% reported ADRs, with at least one possible causality.None were labeled as certain, as a rechallenge was not performed.ADRs were mostly observed in polytherapy (14.37%) and with antidepressants like TCAs (58.84%). Agitation, anxiety and insomnia were the common ADRs which were associated with the use of antidepressants. This study offers a representative profile of the ADRs which can be expected in the Psychiatry Outpatients Department and due care must be taken to avoid these ADRs.