Mechanism of action: Escitalopram balliculeVisual mnemonic: Escitalopram mascot “Lexus Pram” Pram is the British word for baby carriage Blue cloud → serotonin reuptake inhibitor (SRI)
What it isSSRI, the active S-enantiomer of citalopram; depression and generalized anxiety.
Why this oneMinimal CYP inhibition and little activating or sedating burden make it a common first choice when tolerability matters.
What limits itQT prolongation is dose-related; use lower ceilings in older adults or hepatic impairment. Watch for hyponatremia.
Defining liabilitySexual/GI effects, hyponatremia, discontinuation and serotonin toxicity; overdose danger varies substantially by agent.
Serotonin and MAOI
Provisional washout figures
SRI significance3 / 4
MAO-A inhibition0 / 4
Serotonin release0 / 4
Elevating mechanismSRI
Non-elevating actionNone recorded
Exposure dependenceTherapeutic exposure; severe toxicity requires meaningful MAO-A inhibition
Washout BEFORE an MAOI14 days
Evidence confidenceHigh
InterpretationClinically significant SRI. A second SRI generally represents therapeutic duplication/additive adverse effects, not the classic life-threatening interaction.