What is the drug mirtazapine used for?

Mirtazapine is a medication used to treat depression and other mental health conditions. It is classified as a noradrenergic and specific serotonergic antidepressant (NaSSA), which works by increasing the levels of certain neurotransmitters in the brain, including serotonin and norepinephrine.

Mirtazapine is primarily used to treat major depressive disorder, which is characterized by persistent feelings of sadness, hopelessness, and a loss of interest in activities that were once enjoyable. Mirtazapine can help alleviate these symptoms and improve overall quality of life for those with depression.

Aside from depression, mirtazapine may also be used to treat other conditions, including anxiety disorders, obsessive-compulsive disorder (OCD), and post-traumatic stress disorder (PTSD). It may also be used off-label for other conditions, such as insomnia and appetite stimulation.

Mirtazapine is typically taken once daily, usually at bedtime, and can take several weeks to start working. It is important to follow your healthcare provider’s instructions for taking the medication and to not stop taking it without first talking to them. Like any medication, mirtazapine can come with potential side effects, and it’s important to discuss any concerns or questions you may have with your healthcare provider.


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: