Drug interactions
Arformoterol + Triamterene
Severity: Minor
Arformoterol 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
Arformoterol, a beta-2 agonist, can lower serum potassium, whereas triamterene retains it. The opposing effects usually offset each other and rarely cause problems.
What this interaction means in plain words
Arformoterol 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.
Arformoterol belongs to Respiratory; Triamterene belongs to Cardiovascular.
Why it happens
Opposing effects on serum potassium: beta-2 agonism promotes cellular uptake whereas triamterene reduces renal excretion.
What to do
No routine action needed; check serum potassium if the patient has risk factors for electrolyte disturbance or arrhythmia.
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?
Pro+ members
Unlock the full page
Create an account and start a Pro+ trial to unlock the full management advice for Arformoterol and Triamterene, the additional notes, the evidence detail and the whole-prescription interaction checker.
- Full clinical management advice
- Additional notes
- Evidence detail
- Interaction checker for a whole prescription
Try Pro+ free for 7 days on the web. No card needed.
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 Arformoterol
Frequently asked questions
Can I take Arformoterol with Triamterene?
MediHelp rates the interaction as minor. Arformoterol 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. Arformoterol, a beta-2 agonist, can lower serum potassium, whereas triamterene retains it. The opposing effects usually offset each other and rarely cause problems.
How serious is the interaction between Arformoterol 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: No routine action needed; check serum potassium if the patient has risk factors for electrolyte disturbance or arrhythmia.
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.
Full monographs, dosing and an interaction checker in the MediHelp app
Open the complete reference, check multi-drug interactions and use dosing tools in the MediHelp app.
