Skip to content

Drug interactions

Caffeine + Cinnarizine

Severity: Minor

Caffeine and Cinnarizine: 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

Caffeine is a CNS stimulant that may partly counteract the drowsiness caused by cinnarizine. The effect is variable and rarely clinically important.

What this interaction means in plain words

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

Caffeine belongs to Miscellaneous; Cinnarizine belongs to Respiratory.

Evidence level: Low

Why it happens

Pharmacodynamic opposition between CNS stimulation and antihistamine sedation.

What to do

No action is needed. Do not rely on caffeine to offset sedation when driving or operating machinery.

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.

Pro+ members

Unlock the full page

Create an account and start a Pro+ trial to unlock the full management advice for Caffeine and Cinnarizine, 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 14 days on the web. No card needed.

Frequently asked questions

Can I take Caffeine with Cinnarizine?

MediHelp rates the interaction as minor. Caffeine and Cinnarizine have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised. Caffeine is a CNS stimulant that may partly counteract the drowsiness caused by cinnarizine. The effect is variable and rarely clinically important.

How serious is the interaction between Caffeine and Cinnarizine?

MediHelp rates it minor, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: No action is needed. Do not rely on caffeine to offset sedation when driving or operating machinery.

What other medicines interact with Caffeine?

MediHelp also lists interactions of Caffeine with, for example, Ephedrine, Fezolinetant, Methylenedioxymethamphetamine. The full list is on the Caffeine 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.

Browse A–Z · Drug interactions

Get the app Sign in