Concept

Mianserin

Summary
Mianserin, sold under the brand name Tolvon among others, is an atypical antidepressant that is used primarily in the treatment of depression in Europe and elsewhere in the world. It is a tetracyclic antidepressant (TeCA). Mianserin is closely related to mirtazapine, both chemically and in terms of its actions and effects, although there are significant differences between the two drugs. Mianserin at higher doses (30–90mg/day) is used for the treatment of major depressive disorder. It can also be used at lower doses (around 10mg/day) to treat insomnia. It should not be given, except if based on clinical need and under strict medical supervision, to people younger than 18 years old, as it can increase the risk of suicide attempts and suicidal thinking, and it can increase aggressiveness. While there is no evidence that it can harm a fetus from animal models, there are no data showing it safe for pregnant women to take. People with severe liver disease should not take mianserin, and it should be used with caution for people with epilepsy or who are at risk for seizures, as it can lower the threshold for seizures. If based on clinical decision, normal precautions should be exercised and the dosages of mianserin and any concurrent therapy kept under review and adjusted as needed. Very common (incidence > 10%) adverse effects include constipation, dry mouth, and drowsiness at the beginning of treatment. Common (1% < incidence ≤ 10%) adverse effects include drowsiness during maintenance therapy, tremor, headache, dizziness, vertigo, and weakness. Uncommon (0.1% < incidence ≤ 1%) adverse effects include weight gain. Abrupt or rapid discontinuation of mianserin may provoke a withdrawal, the effects of which may include depression, anxiety, panic attacks, decreased appetite or anorexia, insomnia, diarrhea, nausea and vomiting, and flu-like symptoms, such as allergies or pruritus, among others. Overdose of mianserin is known to produce sedation, coma, hypotension or hypertension, tachycardia, and QT interval prolongation.
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