Skip to content

Drug interactions

Ketamine + Loxapine

Severity: Moderate

Ketamine and Loxapine: 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

Both drugs act on the CNS and can add to sedation and impair psychomotor function. Loxapine may also contribute hypotension and lower the seizure threshold, and ketamine can alter psychotic symptoms or cause emergence reactions.

What this interaction means in plain words

Ketamine and Loxapine 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.

Ketamine belongs to Central Nervous System; Loxapine belongs to Central Nervous System.

Evidence level: Low

Why it happens

Additive CNS depression, with loxapine alpha-blockade adding to hypotensive effects.

What to do

Titrate ketamine to effect and monitor sedation, blood pressure and respiration. Inform the anesthesia or procedural team about antipsychotic therapy beforehand.

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 Ketamine and Loxapine, 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 Ketamine with Loxapine?

MediHelp rates the interaction as moderate. Ketamine and Loxapine 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. Both drugs act on the CNS and can add to sedation and impair psychomotor function. Loxapine may also contribute hypotension and lower the seizure threshold, and ketamine can alter psychotic symptoms or cause emergence reactions.

How serious is the interaction between Ketamine and Loxapine?

MediHelp rates it moderate, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Titrate ketamine to effect and monitor sedation, blood pressure and respiration. Inform the anesthesia or procedural team about antipsychotic therapy beforehand.

What other medicines interact with Loxapine?

MediHelp also lists interactions of Loxapine with, for example, Alfentanil, Alprazolam, Amisulpride. The full list is on the Loxapine 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