Skip to content

Drug interactions

Caffeine + Esketamine

Severity: Minor

Caffeine and Esketamine: minor 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

Caffeine is a mild stimulant that can modestly raise blood pressure and heart rate, adding to esketamine's transient hemodynamic effects. At dietary intake the effect is typically small.

What this interaction means in plain words

Caffeine and Esketamine have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised.

Caffeine belongs to Miscellaneous; Esketamine belongs to Central Nervous System.

Evidence level: Low

Why it happens

Additive mild sympathomimetic stimulation.

What to do

Routine blood pressure monitoring around esketamine dosing is sufficient. Advise avoiding large amounts of caffeine on treatment days.

What to ask your pharmacist

  • Is there anything I should notice while taking both?
  • Do I need to tell my doctor at the next visit?

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 Caffeine and Esketamine, 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 14 days on the web. No card needed.

Frequently asked questions

Can I take Caffeine with Esketamine?

MediHelp rates the interaction as minor. Caffeine and Esketamine have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised. Caffeine is a mild stimulant that can modestly raise blood pressure and heart rate, adding to esketamine's transient hemodynamic effects. At dietary intake the effect is typically small.

How serious is the interaction between Caffeine and Esketamine?

MediHelp rates it minor, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Routine blood pressure monitoring around esketamine dosing is sufficient. Advise avoiding large amounts of caffeine on treatment days.

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