Safe Approach to Starting Escitalopram While Tapering Off Mirtazapine

Rationale for Gradual Tapering

Gradual tapering of psychotropic medications is recommended to avoid withdrawal symptoms and rebound worsening of underlying conditions, as suggested by the American Academy of Child and Adolescent Psychiatry 1, 2

The Mayo Clinic recommends a mirtazapine tapering schedule, where the dose is reduced by 25% of the original dose during week 1-2, by another 25% during week 3-4, and by another 25% during week 5-6, with complete discontinuation by week 7-8 3
The American Academy of Child and Adolescent Psychiatry suggests beginning escitalopram at 5mg daily during week 1-2 of mirtazapine taper, increasing to 10mg daily during week 3-4 if tolerated, and adjusting to a target therapeutic dose by week 5-6 3

The American Academy of Child and Adolescent Psychiatry recommends monitoring for withdrawal symptoms, including anxiety, insomnia, irritability, dizziness, and nausea, during the tapering process 2
Monitoring for serotonin syndrome symptoms, such as confusion, agitation, muscle rigidity, and hyperthermia, is also recommended during the cross-tapering period, although the risk is low with this specific combination 1, 2

If withdrawal symptoms become severe during tapering, it is recommended to slow the taper by returning to the previous dose before attempting a more gradual reduction 5

The American Academy of Child and Adolescent Psychiatry recommends avoiding abrupt discontinuation of mirtazapine, which can trigger severe withdrawal symptoms, including panic attacks, and instead suggests a 4-6 week minimum transition period for most patients 1, 2
Starting escitalopram at full therapeutic dose while still on higher doses of mirtazapine should be avoided to reduce the risk of adverse effects, as recommended by the Mayo Clinic 3