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Drug interactions

Green tea + Isocarboxazid

Severity: Moderate

Green tea and Isocarboxazid: 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, a stimulant that can add to the pressor effects of MAO inhibition. Large amounts may contribute to hypertension, palpitations or arrhythmia.

What this interaction means in plain words

Green tea and Isocarboxazid 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 belongs to Gastrointestinal Tract; Isocarboxazid belongs to Central Nervous System.

Evidence level: Low

Why it happens

Caffeine's sympathomimetic effect combined with MAO inhibition, which impairs breakdown of catecholamines and tyramine.

What to do

Limit green tea and other caffeine intake and avoid concentrated extracts or supplements. Monitor blood pressure and heart rate, and counsel the patient about palpitations or severe headache.

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?

Bring a full list of your medicines, including over-the-counter products, supplements and herbal remedies, to every pharmacy visit.

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Frequently asked questions

Can I take Green tea with Isocarboxazid?

MediHelp rates the interaction as moderate. Green tea and Isocarboxazid 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, a stimulant that can add to the pressor effects of MAO inhibition. Large amounts may contribute to hypertension, palpitations or arrhythmia.

How serious is the interaction between Green tea and Isocarboxazid?

MediHelp rates it moderate, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Limit green tea and other caffeine intake and avoid concentrated extracts or supplements. Monitor blood pressure and heart rate, and counsel the patient about palpitations or severe headache.

What other medicines interact with Isocarboxazid?

MediHelp also lists interactions of Isocarboxazid with, for example, 5-HTP, Amitriptyline, Amobarbital. The full list is on the Isocarboxazid page.

Full monographs, dosing and an interaction checker in the MediHelp app

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