Mirtazapine is a tetracyclic antidepressant used to treat depression and other mood disorders. It has side effects such as sleepiness, weight gain, and low white blood cell count, and may interact with monoamine oxidase inhibitors. Mirtazapine is an antidepressant used to treat depression. Learn its uses, side effects, dosage, and safety tips. Understand how this medicine works. Point of Care - Clinical decision support for Mirtazapine . Treatment and management. Indications, Mechanism of Action, Administration, Adverse Effects, Contraindications, Monitoring, Toxicity, Enhancing Healthcare Team Outcomes Mirtazapine Tablets ( Mirtazapine ) may treat, side effects, dosage, drug interactions, warnings, patient labeling, reviews, and related medications including drug comparison and health resources.