Drug interactions
Arformoterol + Tacrolimus
Severity: Moderate
Arformoterol and Tacrolimus: 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
Both drugs may prolong the QTc interval, and arformoterol can lower serum potassium. The combination may increase arrhythmia risk in susceptible patients.
What this interaction means in plain words
Arformoterol and Tacrolimus 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; Tacrolimus belongs to Miscellaneous.
Why it happens
Additive QT prolongation with beta-agonist-related hypokalemia.
What to do
Monitor electrolytes and consider ECG monitoring in patients with cardiac disease or other QT-prolonging drugs.
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 Tacrolimus
- Adenovirus types 4 and 7 live + Tacrolimus Contraindicated
- Bcg vaccine live + Tacrolimus Contraindicated
- Cidofovir + Tacrolimus Contraindicated
- Cyclosporin + Tacrolimus Contraindicated
- Influenza virus vaccine quadrivalent intranasal + Tacrolimus Contraindicated
- Measles mumps and rubella vaccine live + Tacrolimus Contraindicated
Other interactions of Arformoterol
Frequently asked questions
Can I take Arformoterol with Tacrolimus?
MediHelp rates the interaction as moderate. Arformoterol and Tacrolimus 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. Both drugs may prolong the QTc interval, and arformoterol can lower serum potassium. The combination may increase arrhythmia risk in susceptible patients.
How serious is the interaction between Arformoterol and Tacrolimus?
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 electrolytes and consider ECG monitoring in patients with cardiac disease or other QT-prolonging drugs.
What other medicines interact with Tacrolimus?
MediHelp also lists interactions of Tacrolimus with, for example, Adenovirus types 4 and 7 live, Bcg vaccine live, Cidofovir. The full list is on the Tacrolimus page.
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