Drug interactions
Tiotropium-olodaterol + Umeclidinium bromide / vilanterol inhaled
Severity: Major
Tiotropium-olodaterol and Umeclidinium bromide / vilanterol inhaled: major 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 products combine a long-acting antimuscarinic with a long-acting beta-agonist, so using them together duplicates therapy. This increases anticholinergic and beta-adrenergic adverse effects such as dry mouth, urinary retention, tachycardia and tremor without added benefit.
What this interaction means in plain words
Tiotropium-olodaterol and Umeclidinium bromide / vilanterol inhaled can interact in a way that may be serious. Using them together is sometimes necessary, but it needs a deliberate decision by the prescriber, a plan for monitoring, and clear advice on the warning signs to watch for.
Why it happens
Duplicate LAMA and LABA pharmacology producing additive antimuscarinic and beta-adrenergic effects.
What to do
Do not use both inhalers together; select a single LAMA/LABA product.
What to ask your pharmacist
- Does the benefit of taking both outweigh the risk in my case?
- Do I need any blood test, ECG or other check while on both?
- What early warning signs should I watch for, and what should I do if they appear?
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Other interactions of Tiotropium-olodaterol
Frequently asked questions
Can I take Tiotropium-olodaterol with Umeclidinium bromide / vilanterol inhaled?
MediHelp rates the interaction as major. Tiotropium-olodaterol and Umeclidinium bromide / vilanterol inhaled can interact in a way that may be serious. Using them together is sometimes necessary, but it needs a deliberate decision by the prescriber, a plan for monitoring, and clear advice on the warning signs to watch for. Both products combine a long-acting antimuscarinic with a long-acting beta-agonist, so using them together duplicates therapy. This increases anticholinergic and beta-adrenergic adverse effects such as dry mouth, urinary retention, tachycardia and tremor without added benefit.
How serious is the interaction between Tiotropium-olodaterol and Umeclidinium bromide / vilanterol inhaled?
MediHelp rates it major, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Do not use both inhalers together; select a single LAMA/LABA product.
What other medicines interact with Tiotropium-olodaterol?
MediHelp also lists interactions of Tiotropium-olodaterol with, for example, Amisulpride, Arformoterol, Arsenic trioxide. The full list is on the Tiotropium-olodaterol page.
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