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Mirtazapine: uses, side effects & brands
Mirtazapine is an antidepressant that also improves sleep and appetite. It belongs to the Antidepressant / anti-anxiety group. These treat depression, anxiety and related conditions, and some also help nerve pain or sleep.
Drug type — dosing is set by your doctor
| Measure | Range |
|---|---|
| Drug class | Antidepressant / anti-anxiety |
| Type | Prescription |
| Dose | Individual — ask your doctor or pharmacist |
What it is used for
- Depression
- Depression with poor sleep
- Depression with poor appetite
- Anxiety alongside depression (as decided by a doctor)
Common brand names
- India: Mirtaz, Mirt, Mirnite
- Worldwide: Remeron
Common side effects
- Drowsiness
- Increased appetite and weight gain
- Dry mouth
- Dizziness
Before taking it — precautions
- Avoid alcohol and do not drive if drowsy
- Tell your doctor about liver or kidney problems, epilepsy, or bipolar disorder
- Do not stop suddenly — reduce gradually with your doctor
When to see a doctor urgently
- Sore throat, fever or mouth ulcers (low white cells) (urgent)
- Thoughts of self-harm (urgent)
- Severe rash (urgent)
Not a prescription — no dose shown. The right dose of mirtazapine depends on age, weight, kidney/liver function and the condition, so MedDroid does not show a dose here. Always get your dose from a doctor or pharmacist and the leaflet inside the pack. General educational information only.
Frequently asked questions
Why is mirtazapine taken at night?
It causes sleepiness, which can help people with depression who sleep poorly.
Will it make me gain weight?
It often increases appetite and can cause weight gain; a balanced diet and activity help.
Does it cause sexual side effects?
It causes sexual side effects less often than many SSRIs.
Explore more
Sources & further reading
- World Health Organization (WHO)
- MedlinePlus — U.S. National Library of Medicine
- Ministry of Health & Family Welfare, India
- Indian Council of Medical Research (ICMR)
Reviewed by Dr. Sanjay Anbu, MBBS. MedDroid is an AI medical assistant and can make mistakes. It provides general health information, not a diagnosis or medical advice — always consult a qualified clinician. In an emergency, contact your local emergency number immediately.