Drug interactions
Caffeine + Cyclizine
Severity: Minor
Caffeine and Cyclizine: 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 may partly offset the drowsiness caused by cyclizine, but it does not reliably restore alertness or psychomotor performance. No significant harmful interaction is established.
What this interaction means in plain words
Caffeine and Cyclizine 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; Cyclizine belongs to Respiratory.
Why it happens
Pharmacodynamic opposition: adenosine receptor antagonism versus central antihistamine sedation.
What to do
No intervention is needed. Advise that caffeine does not make it safe to drive after taking cyclizine.
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?
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Other interactions of Cyclizine
- Calcium / magnesium / potassium / sodium oxybates + Cyclizine Major
- Cyclizine + Henbane Major
- Cyclizine + Sodium oxybate Major
- Abobotulinumtoxina + Cyclizine Moderate
- Alfentanil + Cyclizine Moderate
- Alprazolam + Cyclizine Moderate
Other interactions of Caffeine
- Caffeine + Ephedrine Major
- Caffeine + Fezolinetant Major
- Caffeine + Methylenedioxymethamphetamine Major
- Caffeine + Selegiline transdermal Major
- Adenosine + Caffeine Moderate
- Benzphetamine + Caffeine Moderate
Frequently asked questions
Can I take Caffeine with Cyclizine?
MediHelp rates the interaction as minor. Caffeine and Cyclizine 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 may partly offset the drowsiness caused by cyclizine, but it does not reliably restore alertness or psychomotor performance. No significant harmful interaction is established.
How serious is the interaction between Caffeine and Cyclizine?
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 intervention is needed. Advise that caffeine does not make it safe to drive after taking cyclizine.
What other medicines interact with Cyclizine?
MediHelp also lists interactions of Cyclizine with, for example, Calcium / magnesium / potassium / sodium oxybates, Henbane, Sodium oxybate. The full list is on the Cyclizine page.
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