Drug interactions
Green tea + Verapamil
Severity: Minor
Green tea and Verapamil: 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
Verapamil reduces caffeine clearance, which is present in green tea, and raises caffeine concentrations. Patients may experience jitteriness, insomnia, palpitations or tachycardia with usual caffeine intake.
What this interaction means in plain words
Green tea and Verapamil have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised.
Green tea belongs to Gastrointestinal Tract; Verapamil belongs to Cardiovascular.
Why it happens
Verapamil inhibits CYP1A2-mediated caffeine metabolism.
What to do
Advise patients to limit caffeinated green tea and other caffeine sources if they notice stimulant symptoms.
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 Verapamil
- Dofetilide + Verapamil Contraindicated
- Flibanserin + Verapamil Contraindicated
- Lomitapide + Verapamil Contraindicated
- Lonafarnib + Verapamil Contraindicated
- Pimozide + Verapamil Contraindicated
- Acebutolol + Verapamil Major
Other interactions of Green tea
- Adenosine + Green tea Moderate
- Benzphetamine + Green tea Moderate
- Bortezomib + Green tea Moderate
- Dextroamphetamine + Green tea Moderate
- Diethylpropion + Green tea Moderate
- Ephedrine + Green tea Moderate
Frequently asked questions
Can I take Green tea with Verapamil?
MediHelp rates the interaction as minor. Green tea and Verapamil have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised. Verapamil reduces caffeine clearance, which is present in green tea, and raises caffeine concentrations. Patients may experience jitteriness, insomnia, palpitations or tachycardia with usual caffeine intake.
How serious is the interaction between Green tea and Verapamil?
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 patients to limit caffeinated green tea and other caffeine sources if they notice stimulant symptoms.
What other medicines interact with Verapamil?
MediHelp also lists interactions of Verapamil with, for example, Dofetilide, Flibanserin, Lomitapide. The full list is on the Verapamil page.
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