Skip to content

Drug interactions

Esketamine + Nortriptyline

Severity: Moderate

Esketamine and Nortriptyline: moderate interaction.

Last updated

For healthcare professionals — reference only. This page is a brief summary, not medical advice and not a substitute for official labeling or clinical judgement. Always verify before prescribing or dispensing.

Summary

Nortriptyline is a tricyclic antidepressant with sedative and anticholinergic properties, and esketamine can raise blood pressure and cause sedation. Combined use may increase drowsiness and cardiovascular effects.

What this interaction means in plain words

Esketamine and Nortriptyline can affect each other. The combination is often manageable, but it may need a change of dose, a change of timing, or extra checks while both are taken.

Esketamine belongs to Central Nervous System; Nortriptyline belongs to Central Nervous System.

Evidence level: Low

Why it happens

Additive CNS depression, plus possible additive cardiovascular stimulation.

What to do

Monitor sedation and blood pressure before and after esketamine doses. Consider adjusting the tricyclic dose if oversedation occurs.

What to ask your pharmacist

  • Should I take them at different times of day?
  • Does the dose of either medicine need to change?
  • Is there anything I should avoid, such as alcohol or certain foods, while on both?

Bring a full list of your medicines, including over-the-counter products, supplements and herbal remedies, to every pharmacy visit.

Pro+ members

Unlock the full page

Create an account and start a Pro+ trial to unlock the full management advice for Esketamine and Nortriptyline, the additional notes, the evidence detail and the whole-prescription interaction checker.

  • Full clinical management advice
  • Additional notes
  • Evidence detail
  • Interaction checker for a whole prescription

Try Pro+ free for 7 days on the web. No card needed.

Frequently asked questions

Can I take Esketamine with Nortriptyline?

MediHelp rates the interaction as moderate. Esketamine and Nortriptyline can affect each other. The combination is often manageable, but it may need a change of dose, a change of timing, or extra checks while both are taken. Nortriptyline is a tricyclic antidepressant with sedative and anticholinergic properties, and esketamine can raise blood pressure and cause sedation. Combined use may increase drowsiness and cardiovascular effects.

How serious is the interaction between Esketamine and Nortriptyline?

MediHelp rates it moderate, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Monitor sedation and blood pressure before and after esketamine doses. Consider adjusting the tricyclic dose if oversedation occurs.

What other medicines interact with Esketamine?

MediHelp also lists interactions of Esketamine with, for example, Alfentanil, Amobarbital, Belladonna and opium. The full list is on the Esketamine page.

Full monographs, dosing and an interaction checker in the MediHelp app

Open the complete reference, check multi-drug interactions and use dosing tools in the MediHelp app.

Browse A–Z · Drug interactions

Get the app Sign in