Hi & Welcome. Remeron (Mirtazapine) is an atypical antidepressant that works by restoring the balance of neurotransmitters like nor-adrenaline & serotonin in the brain. It is also called as nor-adrenergic and serotonergic antidepressant (NaSA) used in the treatment of major depressive disorder as it improves mood and feelings of well-being. it is also used in the treatment of generalized anxiety disorder, obsessive-compulsive disorder and other conditions. Its most common side effects include excessive drowsiness or sleepiness, dizziness, increased appetite and weight gain, dry mouth, and constipation. It may cause a discontinuation syndrome upon cessation which is characterized by depression, anxiety, panic attacks, vertigo, restlessness, irritability, decreased appetite, insomnia, diarrhea, nausea, vomiting, flu-like symptoms such as allergies and itching, headaches and sometimes hypomania or mania. If you want to stop taking it a gradual and slow reduction in dose is recommended to minimize discontinuation symptoms. Hope to have answered your query.