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Drug interactions

Amantadine + Modafinil

Severity: Minor

Amantadine and Modafinil: minor 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 have CNS stimulating properties, so together they may increase insomnia, agitation, anxiety or tremor. The effect is mostly additive and usually manageable.

What this interaction means in plain words

Amantadine and Modafinil have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised.

Amantadine belongs to Anti Virals; Modafinil belongs to Central Nervous System.

Evidence level: Low

Why it happens

Additive central nervous system stimulation.

What to do

Monitor for insomnia, agitation and anxiety, and reduce a dose or give the later dose earlier in the day if symptoms occur.

What to ask your pharmacist

  • Is there anything I should notice while taking both?
  • Do I need to tell my doctor at the next visit?

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 Amantadine with Modafinil?

MediHelp rates the interaction as minor. Amantadine and Modafinil have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised. Both drugs have CNS stimulating properties, so together they may increase insomnia, agitation, anxiety or tremor. The effect is mostly additive and usually manageable.

How serious is the interaction between Amantadine and Modafinil?

MediHelp rates it minor, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Monitor for insomnia, agitation and anxiety, and reduce a dose or give the later dose earlier in the day if symptoms occur.

What other medicines interact with Amantadine?

MediHelp also lists interactions of Amantadine with, for example, Ethanol, Memantine-donepezil, Metoclopramide. The full list is on the Amantadine 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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