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Drug interactions

Ketamine + Voxelotor

Severity: Moderate

Ketamine and Voxelotor: 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

Voxelotor inhibits CYP3A4 and may increase exposure to ketamine, which is partly metabolized by this enzyme. This could intensify sedation, dissociative effects and cardiovascular stimulation.

What this interaction means in plain words

Ketamine and Voxelotor 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; Voxelotor belongs to Miscellaneous.

Evidence level: Low

Why it happens

Voxelotor inhibits CYP3A4, decreasing ketamine metabolic clearance.

What to do

Use the lowest effective ketamine dose and titrate slowly while monitoring blood pressure, heart rate and level of sedation. Lower subsequent doses if effects are exaggerated.

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 Voxelotor?

MediHelp rates the interaction as moderate. Ketamine and Voxelotor 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. Voxelotor inhibits CYP3A4 and may increase exposure to ketamine, which is partly metabolized by this enzyme. This could intensify sedation, dissociative effects and cardiovascular stimulation.

How serious is the interaction between Ketamine and Voxelotor?

MediHelp rates it moderate, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Use the lowest effective ketamine dose and titrate slowly while monitoring blood pressure, heart rate and level of sedation. Lower subsequent doses if effects are exaggerated.

What other medicines interact with Ketamine?

MediHelp also lists interactions of Ketamine with, for example, Benzhydrocodone / acetaminophen, Brexanolone, Buprenorphine buccal. The full list is on the Ketamine page.

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

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