Is mirtazapine high risk?

Mirtazapine is a medication used to treat depression and other mental health conditions. It is generally considered to be safe and effective, but like all medications, it can have potential side effects and risks.

One common side effect of mirtazapine is drowsiness and sedation, which can be a concern for individuals who need to operate machinery or engage in activities that require alertness. Other side effects may include weight gain, increased appetite, and dry mouth.

While serious side effects of mirtazapine are rare, there have been cases reported of allergic reactions or a decrease in white blood cells, which can increase the risk of infection. It is important to discuss any concerns or questions about the risks and benefits of mirtazapine with a healthcare provider.

One potential risk associated with mirtazapine and other antidepressants is an increased risk of suicidal thoughts or behaviors. This risk may be higher in children, teenagers, and young adults, as well as during the first few months of treatment or during dosage changes. It is important to closely monitor individuals taking mirtazapine and to report any concerning symptoms or changes in behavior to a healthcare provider.

Despite these potential risks, mirtazapine is generally considered to be a safe medication when used as prescribed and under the supervision of a qualified healthcare provider. It is important to work closely with a healthcare provider when taking mirtazapine or any other medication to ensure that it is being used safely and effectively.

There are various forms of drugs available, such as tablets or liquids, and each may have a separate patient information leaflet (PIL) for different doses. It is important to refer to the PIL for the specific form and dose of the drug that you have been prescribed.

You can search for further information and PILs on websites such as:

  • The British National Formulary (BNF)
  • Electronic medicines compendium (emc)
  • The National Library of Medicine's DailyMed
  • The Food and Drug Administration (FDA) 
  • Different drug forms like tablets or liquids have specific patient information leaflets (PIL) for various doses. Refer to the PIL for your prescribed drug form and dose.

    Search for PILs on websites like:


    • ANSM (Agence nationale de sécurité du médicament et des produits de santé):


    • AEMPS (Agencia Española de Medicamentos y Productos Sanitarios):


    • BfArM (Bundesinstitut für Arzneimittel und Medizinprodukte):


    For questions about your medication:

    • Consult your doctor, a healthcare professional, or a pharmacist


    • Contact SOS Médecins: 3624
    • For mental health support, contact SOS Suicide: 01 45 39 40 00

    Belgium (French)

    Switzerland (French)

    • La Main Tendue: 143
    • Website:

    Canada (French)

    • Centre de prévention du suicide du Québec: 1 866 APPELLE (1 866 277-3553)
    • Website:


    • Contact emergency number: 112
    • For mental health support, contact Teléfono de la Esperanza: 717 003 717


    • Contact emergency number: 112
    • For mental health support, contact Telefonseelsorge: 0800 111 0 111 or 0800 111 0 222


    • Contact emergency number: 112
    • For mental health support, contact Telefono Amico: 199 284 284


    • Contact emergency number: 112
    • For mental health support, contact 113 Zelfmoordpreventie: 0800 0113


    • Contact emergency number: 112
    • For mental health support, contact Sos Voz Amiga: 21 354 45 45, 91 280 26 69, or 96 352 46 60

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