Drug interactions
Green tea + Methamphetamine
Severity: Minor
Green tea and Methamphetamine: 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
Green tea contains caffeine, which can add to the stimulant effects of methamphetamine, causing nervousness, insomnia, and increased heart rate and blood pressure. The effect depends on how much caffeine is consumed.
What this interaction means in plain words
Green tea and Methamphetamine 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; Methamphetamine belongs to Central Nervous System.
Why it happens
Additive CNS and cardiovascular stimulation from caffeine.
What to do
Advise moderating total caffeine intake from tea and other sources. Monitor heart rate, blood pressure and sleep if intake is high.
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 Methamphetamine
- Isocarboxazid + Methamphetamine Contraindicated
- Linezolid + Methamphetamine Contraindicated
- Methamphetamine + Phenelzine Contraindicated
- Methamphetamine + Procarbazine Contraindicated
- Methamphetamine + Rasagiline Contraindicated
- Methamphetamine + Safinamide Contraindicated
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 Methamphetamine?
MediHelp rates the interaction as minor. Green tea and Methamphetamine 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 contains caffeine, which can add to the stimulant effects of methamphetamine, causing nervousness, insomnia, and increased heart rate and blood pressure. The effect depends on how much caffeine is consumed.
How serious is the interaction between Green tea and Methamphetamine?
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 moderating total caffeine intake from tea and other sources. Monitor heart rate, blood pressure and sleep if intake is high.
What other medicines interact with Methamphetamine?
MediHelp also lists interactions of Methamphetamine with, for example, Isocarboxazid, Linezolid, Phenelzine. The full list is on the Methamphetamine page.
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