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Antidepressants

Mirtazapine

Also sold as: Remeron, Mirtaz

Prescription neededAntidepressants
Comes as:Tablet

Usual adult dose

Usual adult dose: 15 mg once a day at bedtime. The doctor may raise it to 30 mg or 45 mg a day. Do not stop it suddenly.

Your doctor may give you a different dose. Children's doses depend on weight.

Side effects

Common

  • sleepiness
  • increased appetite
  • weight gain
  • dry mouth
  • dizziness

Serious — get help

Stop taking it and see a doctor straight away if you notice:

  • sore throat with fever or mouth ulcers (low white blood cells)
  • thoughts of suicide
  • yellow eyes or skin
  • seizures

Do not take it, or take care, if

  • Taking an MAO inhibitor antidepressant
  • Severe liver or kidney disease (use with caution)
  • Young people under 25 (watch closely for suicidal thoughts)
  • Pregnancy and breastfeeding (ask your doctor)

Interactions

Medicines that can react with this one.

Moderate3 medicinesTake together only with care. Ask your doctor or pharmacist.
  • Alprazolam

    Both cause drowsiness; together they slow thinking and reactions more.

  • Diazepam

    Both cause drowsiness; together they slow thinking and reactions more.

  • Tramadol

    The combination can cause serotonin syndrome.

Pregnancy

  1. A
  2. B
  3. C
  4. D
  5. X

Category C

A risk to the baby cannot be ruled out. Use only if your doctor says the benefit is greater than the risk.

Generic alternatives

Similar medicines your doctor or pharmacist may offer instead.

  • Sertraline
  • Amitriptyline
  • Escitalopram
Check with my other medicines

Always follow your doctor or pharmacistThis page is general information, not a prescription. Do not start, stop or change a medicine on your own.