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Drug interactions

Armodafinil + Phendimetrazine

Severity: Moderate

Armodafinil and Phendimetrazine: 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 armodafinil and phendimetrazine are central stimulants with sympathomimetic activity. Combined use can increase blood pressure and heart rate and cause insomnia, anxiety and palpitations.

What this interaction means in plain words

Armodafinil and Phendimetrazine 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.

Evidence level: Low

Why it happens

Additive central stimulant and sympathomimetic pharmacodynamic effects.

What to do

Monitor blood pressure, heart rate and neuropsychiatric symptoms. Avoid the combination in patients with cardiovascular disease or anxiety disorders.

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 Armodafinil with Phendimetrazine?

MediHelp rates the interaction as moderate. Armodafinil and Phendimetrazine 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 armodafinil and phendimetrazine are central stimulants with sympathomimetic activity. Combined use can increase blood pressure and heart rate and cause insomnia, anxiety and palpitations.

How serious is the interaction between Armodafinil and Phendimetrazine?

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, heart rate and neuropsychiatric symptoms. Avoid the combination in patients with cardiovascular disease or anxiety disorders.

What other medicines interact with Armodafinil?

MediHelp also lists interactions of Armodafinil with, for example, Avapritinib, Elacestrant, Elbasvir / grazoprevir. The full list is on the Armodafinil page.

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

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