Mirtazapine

Psychiatry

Psychiatry · Noradrenergic/specific serotonergic antidepressant

Mirtazapine

Dose

15 mg PO nocte; increase to 30–45 mg nocte after 2 weeks.

Use

Depression with insomnia, poor appetite or weight loss; useful in palliative care.

Monitoring

Weight, sedation, FBC if fever/sore throat (rare agranulocytosis).

Side effects

  • Sedation (worse at low dose)
  • Weight gain
  • Dry mouth
  • Restless legs

Related in WardRound

Always confirm dose against your local formulary / BNF before prescribing.

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