Drug interactions
Epinephrine + Green tea
Severity: Minor
Epinephrine and Green tea: 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 in green tea has sympathomimetic effects that can add to those of epinephrine. This may increase heart rate, blood pressure and arrhythmia risk, though the effect is usually modest.
What this interaction means in plain words
Epinephrine and Green tea have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised.
Epinephrine belongs to Endocrine; Green tea belongs to Gastrointestinal Tract.
Why it happens
Additive adrenergic and cardiovascular stimulation from caffeine and epinephrine.
What to do
Monitor heart rate and blood pressure when epinephrine is given to patients with high green tea or caffeine intake.
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 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
Other interactions of Epinephrine
- Epinephrine + Isocarboxazid Contraindicated
- Epinephrine + Phenelzine Contraindicated
- Epinephrine + Tranylcypromine Contraindicated
- Acebutolol + Epinephrine Major
- Amitriptyline + Epinephrine Major
- Amoxapine + Epinephrine Major
Frequently asked questions
Can I take Epinephrine with Green tea?
MediHelp rates the interaction as minor. Epinephrine and Green tea 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 in green tea has sympathomimetic effects that can add to those of epinephrine. This may increase heart rate, blood pressure and arrhythmia risk, though the effect is usually modest.
How serious is the interaction between Epinephrine and Green tea?
MediHelp rates it minor, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Monitor heart rate and blood pressure when epinephrine is given to patients with high green tea or caffeine intake.
What other medicines interact with Green tea?
MediHelp also lists interactions of Green tea with, for example, Adenosine, Benzphetamine, Bortezomib. The full list is on the Green tea page.
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