Mirapro® 7.5 mg is a prescription antidepressant manufactured by Square Pharmaceuticals PLC. Each film-coated tablet contains Mirtazapine USP 7.5 mg, a tetracyclic antidepressant. Mirtazapine is primarily indicated for the treatment of major depressive disorder (MDD). It works by enhancing central noradrenergic and serotonergic activity through antagonism of central presynaptic α2-adrenergic inhibitory autoreceptors and heteroreceptors, leading to increased levels of norepinephrine and serotonin in the brain, which helps alleviate symptoms of depression.