Drug interactions
Guarana + Methylphenidate
Severity: Minor
Guarana and Methylphenidate: 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 that adds stimulant effects to methylphenidate. This may increase nervousness, insomnia, tachycardia and blood pressure elevation.
What this interaction means in plain words
Guarana and Methylphenidate 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 CNS and sympathomimetic stimulation from caffeine in guarana and methylphenidate.
What to do
Advise limiting guarana and other caffeine sources. Monitor blood pressure, pulse and sleep.
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 Guarana and Methylphenidate, 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 Methylphenidate
- Isocarboxazid + Methylphenidate Contraindicated
- Linezolid + Methylphenidate Contraindicated
- Methylphenidate + Phenelzine Contraindicated
- Methylphenidate + Procarbazine Contraindicated
- Methylphenidate + Rasagiline Contraindicated
- Methylphenidate + Safinamide Contraindicated
Frequently asked questions
Can I take Guarana with Methylphenidate?
MediHelp rates the interaction as minor. Guarana and Methylphenidate 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 that adds stimulant effects to methylphenidate. This may increase nervousness, insomnia, tachycardia and blood pressure elevation.
How serious is the interaction between Guarana and Methylphenidate?
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. Monitor blood pressure, pulse and sleep.
What other medicines interact with Methylphenidate?
MediHelp also lists interactions of Methylphenidate with, for example, Isocarboxazid, Linezolid, Phenelzine. The full list is on the Methylphenidate 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.
