Drug interactions
Caffeine + Prochlorperazine
Severity: Minor
Caffeine and Prochlorperazine: 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 and may partly offset the sedation produced by prochlorperazine. The net clinical effect is unpredictable and usually small. High caffeine intake could also aggravate restlessness or akathisia in patients taking antipsychotics.
What this interaction means in plain words
Caffeine and Prochlorperazine 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; Prochlorperazine belongs to Central Nervous System.
Why it happens
Pharmacodynamic opposition: caffeine antagonizes adenosine receptors and promotes arousal, while prochlorperazine blocks dopamine and histamine receptors causing sedation.
What to do
No routine change is needed; advise patients to keep caffeine intake moderate and consistent. Reassess if restlessness, insomnia or reduced antiemetic or antipsychotic effect is reported.
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 Prochlorperazine
- Dronedarone + Prochlorperazine Contraindicated
- Ibutilide + Prochlorperazine Contraindicated
- Nilotinib + Prochlorperazine Contraindicated
- Pimozide + Prochlorperazine Contraindicated
- Prochlorperazine + Thioridazine Contraindicated
- Amiodarone + Prochlorperazine Major
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 Prochlorperazine?
MediHelp rates the interaction as minor. Caffeine and Prochlorperazine 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 and may partly offset the sedation produced by prochlorperazine. The net clinical effect is unpredictable and usually small. High caffeine intake could also aggravate restlessness or akathisia in patients taking antipsychotics.
How serious is the interaction between Caffeine and Prochlorperazine?
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 routine change is needed; advise patients to keep caffeine intake moderate and consistent. Reassess if restlessness, insomnia or reduced antiemetic or antipsychotic effect is reported.
What other medicines interact with Prochlorperazine?
MediHelp also lists interactions of Prochlorperazine with, for example, Dronedarone, Ibutilide, Nilotinib. The full list is on the Prochlorperazine page.
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