ABSTRACT
Background: Prescription of antidepressants has been increased from the last decade and responsible for producing sleep disorders as adverse drug reactions (ADRs). Sleep disorders can be divided into 3 large groups: (1) insomnia, (2) primary complaint of daytime sleepiness, and (3) Association of disruptive behaviours during sleep, the disorders of arousal. So active surveillance is needed to access these ADRs. Aims and Objective: To analyze the sleep disturbances as ADRs of various antidepressants prescribed to the patients attending psychiatry outpatient department (OPD). Methods: This prospective study was conducted on patients aged ≤74 years attending Department of Psychiatry OPD and were prescribed Antidepressants for the duration of 8 months (December, 2013-July, 2014). The ADRs reported were confirmed by WHO UMC Causality Assessment Scale. Results: Total number of patients enrolled on the basis of inclusion and exclusion criteria (n=50). Total number of ADRs related to drugs prescribed were found to be n=69. Total number of patients with sleep disturbances as ADRs were found to be n=28. Conclusion: The drug, most frequently implicated to cause sleep disturbances, was mirtazapine. Increased sleep was the most common ADR, found to occur. Unusual ADRs such as sleep talking was also seen.