Drug interactions
Epinephrine + Triamterene
Severity: Minor
Epinephrine and Triamterene: 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
Epinephrine shifts potassium into cells and may lower serum potassium, while triamterene promotes potassium retention. The net effect is unpredictable, but is rarely important after a single therapeutic dose.
What this interaction means in plain words
Epinephrine and Triamterene 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; Triamterene belongs to Cardiovascular.
Why it happens
Opposing effects on serum potassium: beta-2-mediated cellular uptake from epinephrine versus renal retention from triamterene.
What to do
Monitor serum potassium when epinephrine is given repeatedly or by infusion.
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 Triamterene
- Amiloride + Triamterene Contraindicated
- Eplerenone + Triamterene Contraindicated
- Potassium citrate / citric acid + Triamterene Contraindicated
- Potassium citrate + Triamterene Contraindicated
- Spironolactone + Triamterene Contraindicated
- Aceclofenac + Triamterene Major
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 Triamterene?
MediHelp rates the interaction as minor. Epinephrine and Triamterene 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 shifts potassium into cells and may lower serum potassium, while triamterene promotes potassium retention. The net effect is unpredictable, but is rarely important after a single therapeutic dose.
How serious is the interaction between Epinephrine and Triamterene?
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 serum potassium when epinephrine is given repeatedly or by infusion.
What other medicines interact with Triamterene?
MediHelp also lists interactions of Triamterene with, for example, Amiloride, Eplerenone, Potassium citrate / citric acid. The full list is on the Triamterene page.
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