Publication:

Efficacy and tolerability of milnacipran and escitalopram: a comparative study among patients of depression

Background The present prospective, open labelled study was designed to evaluate the efficacy and tolerability of escitalopram, selective serotonin reuptake inhibitors (SSRI) in comparison with milnacipran, dual serotonin and noradrenaline reuptake inhibitors (SNRI) in the treatment of major depressive disorder.

Methods Outpatients (N=120) with an ongoing/newly diagnosed ICD-10 major depressive episode and having a minimum score of 8 on the 21-item Hamilton Depression Rating Scale (HDRS) were assigned to escitalopram, 10–20 mg/day (54 patients) and milnacipran 50-100mg (66 patients), for an 8 week treatment period with follow up at 2nd, 4th and 8th week. The parameters for efficacy were improvement (decrease in HDRS scores at 8 weeks from baseline values), response (decrease of ≥50% in the HDRS scores) and remission (HDRS score of ≤7). Tolerability was assessed by comparing the frequency of adverse effects and drop out rate due to the same at the end of 2nd, 4th and 8th week in both the groups.

Results Improvement, Response rate and Remission rates at the end of eight weeks were 71.11%, 83.33% and58.33% for escitalopram and 59.35%, 34.14% and75.6% for milnacipran respectively. Adverse experiences were reported by 14% of patients in escitalopram group and 79.2% patients in milnacipran group at 8 weeks. Additionally, there were significantly lesser dropouts due to adverse events in escitalopram (3.70%) than in milnacipran group (30%).

Conclusions Escitalopram, the Senantiomer of citalopram, is a safe and effective antidepressant with potentially superior tolerability and comparable efficacy to the dual reuptake inhibitor, Milnacipran.