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Drug interactions

Linezolid + Modafinil

Severity: Moderate

Linezolid and Modafinil: 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

Modafinil has weak sympathomimetic activity, and linezolid's MAO inhibition may enhance pressor responses. A rise in blood pressure is possible but the interaction is less well documented than with amphetamines.

What this interaction means in plain words

Linezolid and Modafinil 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.

Linezolid belongs to Anti Bacterial; Modafinil belongs to Central Nervous System.

Evidence level: Low

Why it happens

Possible additive sympathomimetic effects with MAO inhibition by linezolid.

What to do

Monitor blood pressure and heart rate during combined use, and consider holding modafinil during a short linezolid course if readings rise.

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 Linezolid with Modafinil?

MediHelp rates the interaction as moderate. Linezolid and Modafinil 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. Modafinil has weak sympathomimetic activity, and linezolid's MAO inhibition may enhance pressor responses. A rise in blood pressure is possible but the interaction is less well documented than with amphetamines.

How serious is the interaction between Linezolid and Modafinil?

MediHelp rates it moderate, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Monitor blood pressure and heart rate during combined use, and consider holding modafinil during a short linezolid course if readings rise.

What other medicines interact with Linezolid?

MediHelp also lists interactions of Linezolid with, for example, Amoxapine, Atomoxetine, Benzphetamine. The full list is on the Linezolid page.

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

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