The article you requested is

Hypomania Associated With Mirtazapine Augmentation of Sertraline

J Clin Psychiatry 1998;59(6):320-320 [letter]

Sir: Mirtazapine is a noradrenergic and specific serotonergic antidepressant (NaSSA). Its novel mechanism of action involves α2-adrenergic autoreceptor and heteroreceptor blockade, enhancing serotonin (5-HT) and norepinephrine release; and 5-HT2, 5-HT3, and histamine H1 antagonism. Because mirtazapine blocks 5-HT2 and 5-HT3 receptors, 5-HT1-mediated transmission is enhanced.