Drug interactions
Arformoterol + Vardenafil
Severity: Moderate
Arformoterol and Vardenafil: 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
Arformoterol, a long-acting beta-agonist, may prolong the QT interval and lower potassium, and vardenafil has modest QT effects. The combination could add to arrhythmic risk in susceptible patients.
What this interaction means in plain words
Arformoterol and Vardenafil 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.
Arformoterol belongs to Respiratory; Vardenafil belongs to Genitourinary.
Why it happens
Additive QT prolongation, with beta-agonist-induced hypokalemia.
What to do
Monitor ECG and serum potassium in patients with heart disease or other QT-prolonging drugs. Avoid in congenital long QT syndrome.
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 Vardenafil
- Amyl nitrite + Vardenafil Contraindicated
- Glyceryl trinitrate pr + Vardenafil Contraindicated
- Isosorbide dinitrate + Vardenafil Contraindicated
- Isosorbide mononitrate + Vardenafil Contraindicated
- Nicorandil + Vardenafil Contraindicated
- Nitroglycerin po + Vardenafil Contraindicated
Other interactions of Arformoterol
Frequently asked questions
Can I take Arformoterol with Vardenafil?
MediHelp rates the interaction as moderate. Arformoterol and Vardenafil 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. Arformoterol, a long-acting beta-agonist, may prolong the QT interval and lower potassium, and vardenafil has modest QT effects. The combination could add to arrhythmic risk in susceptible patients.
How serious is the interaction between Arformoterol and Vardenafil?
MediHelp rates it moderate, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Monitor ECG and serum potassium in patients with heart disease or other QT-prolonging drugs. Avoid in congenital long QT syndrome.
What other medicines interact with Vardenafil?
MediHelp also lists interactions of Vardenafil with, for example, Amyl nitrite, Glyceryl trinitrate pr, Isosorbide dinitrate. The full list is on the Vardenafil page.
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