Drug interactions
Dextroamphetamine + Green tea
Severity: Moderate
Dextroamphetamine 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
Green tea contains caffeine, which is a CNS stimulant and adds to the stimulant effects of dextroamphetamine. This can cause more insomnia, nervousness, palpitations, tachycardia and higher blood pressure, especially with concentrated extracts.
What this interaction means in plain words
Dextroamphetamine 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.
Dextroamphetamine belongs to Central Nervous System; Green tea belongs to Gastrointestinal Tract.
Why it happens
Additive CNS and sympathetic stimulation from caffeine and amphetamine.
What to do
Advise limiting green tea and other caffeine sources, and monitor heart rate, blood pressure and sleep.
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 Dextroamphetamine
- Dextroamphetamine + Isocarboxazid Contraindicated
- Dextroamphetamine + Linezolid Contraindicated
- Dextroamphetamine + Methylene blue Contraindicated
- Dextroamphetamine + Phenelzine Contraindicated
- Dextroamphetamine + Rasagiline Contraindicated
- Dextroamphetamine + Safinamide Contraindicated
Other interactions of Green tea
- Adenosine + Green tea Moderate
- Benzphetamine + Green tea Moderate
- Bortezomib + Green tea Moderate
- Diethylpropion + Green tea Moderate
- Ephedrine + Green tea Moderate
- Ferric maltol + Green tea Moderate
Frequently asked questions
Can I take Dextroamphetamine with Green tea?
MediHelp rates the interaction as moderate. Dextroamphetamine 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. Green tea contains caffeine, which is a CNS stimulant and adds to the stimulant effects of dextroamphetamine. This can cause more insomnia, nervousness, palpitations, tachycardia and higher blood pressure, especially with concentrated extracts.
How serious is the interaction between Dextroamphetamine 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: Advise limiting green tea and other caffeine sources, and monitor heart rate, blood pressure and sleep.
What other medicines interact with Dextroamphetamine?
MediHelp also lists interactions of Dextroamphetamine with, for example, Isocarboxazid, Linezolid, Methylene blue. The full list is on the Dextroamphetamine page.
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