Drug interactions
Caffeine + Iloperidone
Severity: Minor
Caffeine and Iloperidone: 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 counter the sedation caused by iloperidone but does not mitigate its QT effect or orthostatic hypotension. Excess caffeine may worsen anxiety, insomnia or palpitations in psychiatric patients.
What this interaction means in plain words
Caffeine and Iloperidone 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; Iloperidone belongs to Central Nervous System.
Why it happens
Opposing CNS effects; no established pharmacokinetic interaction.
What to do
Limit caffeine intake and follow routine monitoring for iloperidone, including ECG when risk factors for QT prolongation are present.
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 Caffeine
- Caffeine + Ephedrine Major
- Caffeine + Fezolinetant Major
- Caffeine + Methylenedioxymethamphetamine Major
- Caffeine + Selegiline transdermal Major
- Adenosine + Caffeine Moderate
- Benzphetamine + Caffeine Moderate
Other interactions of Iloperidone
- Iloperidone + Thioridazine Contraindicated
- Alfuzosin + Iloperidone Major
- Amiodarone + Iloperidone Major
- Amisulpride + Iloperidone Major
- Amitriptyline + Iloperidone Major
- Anagrelide + Iloperidone Major
Frequently asked questions
Can I take Caffeine with Iloperidone?
MediHelp rates the interaction as minor. Caffeine and Iloperidone 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 counter the sedation caused by iloperidone but does not mitigate its QT effect or orthostatic hypotension. Excess caffeine may worsen anxiety, insomnia or palpitations in psychiatric patients.
How serious is the interaction between Caffeine and Iloperidone?
MediHelp rates it minor, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Limit caffeine intake and follow routine monitoring for iloperidone, including ECG when risk factors for QT prolongation are present.
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.
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