MAOI

Medical abbreviation · Drug Class

MAOI
Stands forMonoamine oxidase inhibitor
CategoriesMedical

MAOI stands for Monoamine oxidase inhibitor, a drug class abbreviation.

Older antidepressants, including phenelzine, tranylcypromine and isocarboxazid, plus the selegiline skin patch, that block enzymes that break down serotonin, norepinephrine and dopamine. They are effective for treatment-resistant and atypical depression.

Example: MAOI diet teaching done: avoid aged cheese, cured meats, tap beer and soy sauce.

Usage notes

The first MAOI, iproniazid, was discovered in the 1950s when a tuberculosis drug unexpectedly lifted patients' mood. Eating tyramine-rich foods can cause a hypertensive crisis (the "cheese reaction"), and combining MAOIs with serotonergic drugs can cause fatal serotonin syndrome. Switching to or from an MAOI requires a washout, up to five weeks after fluoxetine.

More drug class abbreviations

  • LABA/LAMA – Long-acting beta-agonist and long-acting muscarinic antagonist…
  • LAI – Long-acting injectable
  • LAMA – Long-acting muscarinic antagonist
  • LMWH – Low-molecular-weight heparin
  • LTRA – Leukotriene receptor antagonist
  • mAb – Monoclonal antibody
  • MHT – Menopausal hormone therapy
  • MRA – Mineralocorticoid receptor antagonist
  • mTORi – Mammalian target of rapamycin inhibitor
  • NAI – Neuraminidase inhibitor
  • NaSSA – Noradrenergic and specific serotonergic antidepressant
  • NDRI – Norepinephrine-dopamine reuptake inhibitor

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This entry is for general education and is not medical advice. Abbreviation use varies between institutions; always confirm in context.