Drug interactions
Armodafinil + Guarana
Severity: Minor
Armodafinil and Guarana: 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
Guarana contains caffeine, a stimulant that can add to the CNS stimulating effects of armodafinil. This may increase nervousness, insomnia, tachycardia, or elevated blood pressure.
What this interaction means in plain words
Armodafinil and Guarana have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised.
Why it happens
Additive central nervous system stimulation from caffeine content.
What to do
Advise limiting guarana and other caffeine sources if insomnia, anxiety, or palpitations develop. Monitor blood pressure and heart rate in sensitive patients.
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?
Pro+ members
Unlock the full page
Create an account and start a Pro+ trial to unlock the full management advice for Armodafinil and Guarana, the additional notes, the evidence detail and the whole-prescription interaction checker.
- Full clinical management advice
- Additional notes
- Evidence detail
- Interaction checker for a whole prescription
Try Pro+ free for 7 days on the web. No card needed.
Other interactions of Armodafinil
Frequently asked questions
Can I take Armodafinil with Guarana?
MediHelp rates the interaction as minor. Armodafinil and Guarana have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised. Guarana contains caffeine, a stimulant that can add to the CNS stimulating effects of armodafinil. This may increase nervousness, insomnia, tachycardia, or elevated blood pressure.
How serious is the interaction between Armodafinil and Guarana?
MediHelp rates it minor, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Advise limiting guarana and other caffeine sources if insomnia, anxiety, or palpitations develop. Monitor blood pressure and heart rate in sensitive patients.
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
Open the complete reference, check multi-drug interactions and use dosing tools in the MediHelp app.
