Mirtazapine

Antidepressant
PRESCRIPTION ONLY IN INDIA

Mirtazapine is a antidepressant found in 3 medicines sold in India, such as Mirtaz 15, Mirtaz 7.5, Mirtaz 30. Below: what it is for, how it works, how to take it, side effects, interactions and pregnancy advice.

What it is used for

Treats depression, especially with poor sleep or appetite.

How it works

An antidepressant that also helps sleep and appetite.

How to take it

Usually 15 to 45 mg at bedtime. Takes 2 to 4 weeks to work.

Common side effects

  • Drowsiness
  • Increased appetite
  • Weight gain
  • Dry mouth

Get medical help straight away if

  • Sore throat, fever (rare low white cells)
  • Thoughts of self-harm
  • Fainting

Be careful

Causes drowsiness and increased appetite.

Other medicines and interactions

More drowsiness with alcohol and sedatives. Serotonin syndrome risk with other antidepressants and tramadol.

Pregnancy and breastfeeding

Ask your doctor; sometimes continued in pregnancy. Considered acceptable while breastfeeding.

Brands of Mirtazapine (3)

Mirtaz 15Mirtaz 30Mirtaz 7.5

Common questions

What is Mirtazapine used for?

Treats depression, especially with poor sleep or appetite.

How does Mirtazapine work?

An antidepressant that also helps sleep and appetite.

How should I take Mirtazapine?

Usually 15 to 45 mg at bedtime. Takes 2 to 4 weeks to work.

What are the side effects of Mirtazapine?

Common: Drowsiness, increased appetite, weight gain, dry mouth. Get help straight away for: Sore throat, fever (rare low white cells), thoughts of self-harm, fainting.

Does Mirtazapine interact with other medicines?

More drowsiness with alcohol and sedatives. Serotonin syndrome risk with other antidepressants and tramadol.

Is Mirtazapine safe in pregnancy and breastfeeding?

Ask your doctor; sometimes continued in pregnancy. Considered acceptable while breastfeeding.

Does Mirtazapine need a prescription in India?

Yes. In India it is a prescription (Schedule H) medicine, so a pharmacist should sell it only with a doctor's prescription.

Which brands contain Mirtazapine?

Mirtaz 15, Mirtaz 30, Mirtaz 7.5.

Sources and further reading

NHS (UK National Health Service) and MedlinePlus (US National Library of Medicine) are free, reviewed medicine guides. Brand names and doses there may differ from India.

Last reviewed 31 October 2026. Written by Satya Babu from standard prescribing information.

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For information only, not medical advice. This page is a plain-language summary written from standard prescribing information and the public guides linked below. Brands sometimes change their formula, so always check the composition printed on the pack. Doses here are typical adult doses; yours may differ. Do not start, stop or change a medicine without your doctor or pharmacist, and keep all medicines away from children. In an emergency, call 112 (India) or your local emergency number.