Anoro Ellipta (Umeclidinium/Vilanterol) Drug Interactions: What to Avoid and What to Tell Your Doctor

Anoro Ellipta (umeclidinium/vilanterol) is generally well-tolerated, but it can interact with a number of medications and substances. Because COPD patients often take multiple medications for heart disease, hypertension, diabetes, or other conditions, understanding these interactions is critical to staying safe.

This guide covers the most clinically significant drug interactions with Anoro Ellipta — including which ones are contraindicated (absolutely avoid), which require caution, and what to share with your doctor and pharmacist.

Contraindicated Drug Combinations (Do Not Use Together)

Certain medications should never be taken with Anoro Ellipta due to risk of dangerous duplication or serious interactions:

1. Other LAMAs (Long-Acting Muscarinic Antagonists)

Do not use Anoro Ellipta with other anticholinergic/LAMA inhalers. This is duplicate therapy and significantly increases the risk of anticholinergic side effects, including severe urinary retention and worsening glaucoma. Medications to avoid combining with Anoro Ellipta include:

• Tiotropium (Spiriva Respimat, Spiriva HandiHaler)
• Aclidinium (Tudorza Pressair)
• Glycopyrrolate (Incruse Ellipta, Seebri Neohaler, Bevespi Aerosphere)
• Revefenacin (Yupelri)
• Ipratropium (Atrovent HFA, Combivent Respimat)

2. Other LABAs (Long-Acting Beta-2 Agonists)

Using multiple LABAs simultaneously increases the risk of cardiovascular side effects and overdose. Avoid combining Anoro Ellipta with other LABA-containing inhalers, including:

• Salmeterol (Serevent Diskus)
• Formoterol (Foradil Aerolizer, Perforomist, Brovana)
• Indacaterol (Arcapta Neohaler)
• Olodaterol (Striverdi Respimat)

Note: If you're prescribed Trelegy Ellipta, Breztri, Breo Ellipta, or Symbicort, those also contain a LABA — do not use them with Anoro Ellipta.

3. Lefamulin

Lefamulin (Xenleta) — an antibiotic — is contraindicated with Anoro Ellipta because it's a strong CYP3A4 inhibitor that significantly increases vilanterol levels AND prolongs the QT interval. This combination creates a serious risk of life-threatening cardiac arrhythmia.

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Major Interactions Requiring Extreme Caution

4. MAO Inhibitors (MAOIs)

Monoamine oxidase inhibitors amplify the adrenergic effects of vilanterol, potentially causing dangerous increases in heart rate and blood pressure. Avoid using Anoro Ellipta within 2 weeks of stopping a MAOI. MAOIs include phenelzine (Nardil), tranylcypromine (Parnate), isocarboxazid (Marplan), and selegiline (Eldepryl, Emsam).

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5. Tricyclic Antidepressants (TCAs)

TCAs potentiate vilanterol's cardiovascular effects and both the anticholinergic and QTc-prolonging effects. Use extreme caution when combining Anoro Ellipta with TCAs within 2 weeks of discontinuation. Common TCAs include amitriptyline (Elavil), nortriptyline (Pamelor), imipramine (Tofranil), and amoxapine.

6. Strong CYP3A4 Inhibitors

Both umeclidinium and vilanterol are metabolized by CYP3A4 enzymes. Strong inhibitors of this enzyme increase drug levels and may amplify side effects. Use with caution when combining with:

• Ketoconazole and itraconazole (antifungals)
• Ritonavir and cobicistat (HIV medications)
• Clarithromycin (antibiotic)

7. Beta-Blockers

Beta-blockers (used for heart disease and hypertension) work by blocking beta receptors — which directly antagonizes vilanterol's bronchodilating mechanism. This can reduce the effectiveness of Anoro Ellipta and potentially cause severe bronchospasm, particularly with non-selective beta-blockers. If a beta-blocker is medically necessary, use a beta-1 selective agent (like metoprolol or atenolol) and monitor lung function carefully. Common beta-blockers include carvedilol, metoprolol, atenolol, propranolol, and bisoprolol.

8. Diuretics (Water Pills) — QT and Potassium Risk

Non-potassium-sparing diuretics (like furosemide, hydrochlorothiazide, and torsemide) can lower potassium levels. Vilanterol also has hypokalemic effects. Together, they can increase the risk of dangerously low potassium (hypokalemia), which can cause cardiac arrhythmias. Your doctor should monitor your potassium levels regularly if you take both.

9. QTc-Prolonging Medications

Vilanterol has the potential to prolong the QT interval — the part of the heartbeat cycle measured on an EKG. Combining it with other QTc-prolonging drugs increases the risk of a serious arrhythmia called torsades de pointes. QTc-prolonging medications include certain antipsychotics, antiarrhythmics, antibiotics (fluoroquinolones), and antidepressants. Ask your pharmacist to review your complete medication list.

What to Tell Your Doctor and Pharmacist

Before starting Anoro Ellipta, provide your doctor and pharmacist with a complete list of:

• All prescription medications (including inhalers, patches, eye drops)
• Over-the-counter medications (decongestants, antihistamines, sleep aids often contain anticholinergics)
• Vitamins, minerals, and herbal supplements
• Any cardiac medications (especially if you take antiarrhythmics or QTc-prolonging drugs)

The Bottom Line

Anoro Ellipta has over 554 documented drug interactions. Always share your complete medication list with your prescriber and pharmacist before starting Anoro Ellipta. The most critical interactions to avoid are duplicate LAMA or LABA therapy, MAOIs within 2 weeks, and lefamulin. For more information about side effects related to these interactions, see our guide on Anoro Ellipta side effects. Need help finding Anoro Ellipta in stock? medfinder can locate it at a pharmacy near you.