NaSSA

Medical abbreviation · Drug Class

NaSSA
Stands forNoradrenergic and specific serotonergic antidepressant
CategoriesMedical

NaSSA stands for Noradrenergic and specific serotonergic antidepressant, a drug class abbreviation.

Classification for mirtazapine (Remeron), which blocks alpha-2 and certain serotonin receptors to increase norepinephrine and serotonin release. It is used for depression, especially with insomnia or poor appetite.

Example: NaSSA mirtazapine 15 mg at bedtime; weight and sleep improved at 4 weeks.

Usage notes

Mirtazapine is paradoxically more sedating at low doses (7.5 to 15 mg), where its antihistamine effect dominates. Increased appetite and weight gain make it useful in older adults losing weight but unwelcome for others. It causes little sexual dysfunction. Orally disintegrating tablets are available.

More drug class abbreviations

  • mAb – Monoclonal antibody
  • MAOI – Monoamine oxidase inhibitor
  • MHT – Menopausal hormone therapy
  • MRA – Mineralocorticoid receptor antagonist
  • mTORi – Mammalian target of rapamycin inhibitor
  • NAI – Neuraminidase inhibitor
  • NDRI – Norepinephrine-dopamine reuptake inhibitor
  • NK1 RA – Neurokinin-1 receptor antagonist
  • NNRTI – Non-nucleoside reverse transcriptase inhibitor
  • NOAC – Novel oral anticoagulant
  • NRT – Nicotine replacement therapy
  • NRTI – Nucleoside/nucleotide reverse transcriptase inhibitor

See all 113 drug class abbreviations →

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