Welcome to today’s episode on the tricyclic antidepressants, commonly known as TCAs — one of the foundational medication classes in psychopharmacology. Although newer antidepressants like SSRIs often dominate modern prescribing, TCAs remain highly relevant in clinical practice because of their effectiveness in treatment-resistant depression, chronic pain syndromes, migraine prevention, insomnia, and certain anxiety disorders. In this episode, we’ll break down the pharmacology behind these medications, discuss how tertiary amines differ from secondary amines, review major adverse effects and drug interactions, and highlight the key clinical pearls that healthcare professionals and students need to know. Whether you’re a medical, pharmacy, nursing, or PA student preparing for exams, or a practicing clinician looking for a practical refresher, this episode will give you a solid framework for understanding this classic but still clinically important medication class.

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