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Drug interactions

Lisdexamfetamine + Ozanimod

Severity: Major

Lisdexamfetamine and Ozanimod: major 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

Ozanimod's active metabolite inhibits MAO-B in vitro, so combining it with amphetamine from lisdexamfetamine may cause excessive norepinephrine and serotonin effects. This may lead to hypertensive crisis or serotonin syndrome.

What this interaction means in plain words

Lisdexamfetamine and Ozanimod can interact in a way that may be serious. Using them together is sometimes necessary, but it needs a deliberate decision by the prescriber, a plan for monitoring, and clear advice on the warning signs to watch for.

Lisdexamfetamine belongs to Central Nervous System; Ozanimod belongs to Central Nervous System.

Evidence level: Low

Why it happens

MAO inhibition by an ozanimod metabolite potentiates amphetamine-induced monoamine release.

What to do

Avoid the combination. If it cannot be avoided, monitor blood pressure and heart rate closely and watch for serotonin toxicity.

What to ask your pharmacist

  • Does the benefit of taking both outweigh the risk in my case?
  • Do I need any blood test, ECG or other check while on both?
  • What early warning signs should I watch for, and what should I do if they appear?

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 Lisdexamfetamine with Ozanimod?

MediHelp rates the interaction as major. Lisdexamfetamine and Ozanimod can interact in a way that may be serious. Using them together is sometimes necessary, but it needs a deliberate decision by the prescriber, a plan for monitoring, and clear advice on the warning signs to watch for. Ozanimod's active metabolite inhibits MAO-B in vitro, so combining it with amphetamine from lisdexamfetamine may cause excessive norepinephrine and serotonin effects. This may lead to hypertensive crisis or serotonin syndrome.

How serious is the interaction between Lisdexamfetamine and Ozanimod?

MediHelp rates it major, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Avoid the combination. If it cannot be avoided, monitor blood pressure and heart rate closely and watch for serotonin toxicity.

What other medicines interact with Lisdexamfetamine?

MediHelp also lists interactions of Lisdexamfetamine with, for example, Isocarboxazid, Linezolid, Phenelzine. The full list is on the Lisdexamfetamine page.

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