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Drug interactions

Fluticasone-salmeterol + Levalbuterol

Severity: Moderate

Fluticasone-salmeterol and Levalbuterol: 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

Salmeterol and levalbuterol are both beta2-agonists, so combined use can cause additive tachycardia, tremor, palpitations and hypokalemia. Regular use of a long-acting agent already provides bronchodilation, so frequent rescue use signals poor control.

What this interaction means in plain words

Fluticasone-salmeterol and Levalbuterol 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.

Evidence level: Moderate

Why it happens

Additive beta2-adrenergic stimulation including beta2-mediated potassium shift.

What to do

Use levalbuterol only as needed for rescue and monitor heart rate and potassium if use is frequent. Reassess therapy if rescue use increases.

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 Fluticasone-salmeterol with Levalbuterol?

MediHelp rates the interaction as moderate. Fluticasone-salmeterol and Levalbuterol 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. Salmeterol and levalbuterol are both beta2-agonists, so combined use can cause additive tachycardia, tremor, palpitations and hypokalemia. Regular use of a long-acting agent already provides bronchodilation, so frequent rescue use signals poor control.

How serious is the interaction between Fluticasone-salmeterol and Levalbuterol?

MediHelp rates it moderate, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Use levalbuterol only as needed for rescue and monitor heart rate and potassium if use is frequent. Reassess therapy if rescue use increases.

What other medicines interact with Fluticasone-salmeterol?

MediHelp also lists interactions of Fluticasone-salmeterol with, for example, Darunavir, Elvitegravir / cobicistat / emtricitabine / tenofovir df, Fosamprenavir. The full list is on the Fluticasone-salmeterol page.

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