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Drug interactions

Ketamine + Prochlorperazine

Severity: Moderate

Ketamine and Prochlorperazine: 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 depress the central nervous system, so together they may deepen sedation and prolong recovery. Phenothiazines may also add to hypotension and can lower the seizure threshold.

What this interaction means in plain words

Ketamine and Prochlorperazine 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; Prochlorperazine belongs to Central Nervous System.

Evidence level: Low

Why it happens

Additive CNS depression, with additive hypotensive effects of phenothiazine alpha blockade.

What to do

Titrate ketamine to effect and monitor level of consciousness, blood pressure and respiration. Reduce doses in older or debilitated patients.

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.

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Frequently asked questions

Can I take Ketamine with Prochlorperazine?

MediHelp rates the interaction as moderate. Ketamine and Prochlorperazine 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 depress the central nervous system, so together they may deepen sedation and prolong recovery. Phenothiazines may also add to hypotension and can lower the seizure threshold.

How serious is the interaction between Ketamine and Prochlorperazine?

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 level of consciousness, blood pressure and respiration. Reduce doses in older or debilitated patients.

What other medicines interact with Prochlorperazine?

MediHelp also lists interactions of Prochlorperazine with, for example, Dronedarone, Ibutilide, Nilotinib. The full list is on the Prochlorperazine 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.

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