Drug interactions
Ephedrine + Green tea
Severity: Moderate
Ephedrine and Green tea: moderate 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 may add to the stimulant and cardiovascular effects of ephedrine, causing anxiety, tachycardia, palpitations and raised blood pressure. Concentrated extracts increase the risk.
What this interaction means in plain words
Ephedrine and Green tea can affect each other. The combination is often manageable, but it may need a change of dose, a change of timing, or extra checks while both are taken.
Ephedrine belongs to Cardiovascular; Green tea belongs to Gastrointestinal Tract.
Why it happens
Additive sympathomimetic and CNS stimulation from caffeine and ephedrine.
What to do
Avoid green tea extracts and limit caffeine intake. Monitor heart rate and blood pressure.
What to ask your pharmacist
- Should I take them at different times of day?
- Does the dose of either medicine need to change?
- Is there anything I should avoid, such as alcohol or certain foods, while on both?
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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
- Ferric maltol + Green tea Moderate
Other interactions of Ephedrine
- Ephedrine + Isocarboxazid Contraindicated
- Ephedrine + Phenelzine Contraindicated
- Ephedrine + Procarbazine Contraindicated
- Ephedrine + Rasagiline Contraindicated
- Ephedrine + Selegiline Contraindicated
- Ephedrine + Tranylcypromine Contraindicated
Frequently asked questions
Can I take Ephedrine with Green tea?
MediHelp rates the interaction as moderate. Ephedrine and Green tea can affect each other. The combination is often manageable, but it may need a change of dose, a change of timing, or extra checks while both are taken. Caffeine in green tea may add to the stimulant and cardiovascular effects of ephedrine, causing anxiety, tachycardia, palpitations and raised blood pressure. Concentrated extracts increase the risk.
How serious is the interaction between Ephedrine and Green tea?
MediHelp rates it moderate, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Avoid green tea extracts and limit caffeine intake. Monitor heart rate and blood pressure.
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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