Drug interactions
Glycopyrrolate inhaled + Tiotropium
Severity: Major
Glycopyrrolate inhaled and Tiotropium: 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 are inhaled long-acting muscarinic antagonists, so combining them duplicates therapy without added benefit. This increases the risk of anticholinergic adverse effects such as dry mouth, urinary retention and glaucoma worsening.
What this interaction means in plain words
Glycopyrrolate inhaled and Tiotropium 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 muscarinic receptor antagonism.
What to do
Do not use two long-acting muscarinic antagonists together; choose one agent.
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?
Pro+ members
Unlock the full page
Create an account and start a Pro+ trial to unlock the full management advice for Glycopyrrolate inhaled and Tiotropium, the additional notes, the evidence detail and the whole-prescription interaction checker.
- Full clinical management advice
- Additional notes
- Evidence detail
- Interaction checker for a whole prescription
Try Pro+ free for 14 days on the web. No card needed.
Other interactions of Tiotropium
Frequently asked questions
Can I take Glycopyrrolate inhaled with Tiotropium?
MediHelp rates the interaction as major. Glycopyrrolate inhaled and Tiotropium 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 are inhaled long-acting muscarinic antagonists, so combining them duplicates therapy without added benefit. This increases the risk of anticholinergic adverse effects such as dry mouth, urinary retention and glaucoma worsening.
How serious is the interaction between Glycopyrrolate inhaled and Tiotropium?
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 two long-acting muscarinic antagonists together; choose one agent.
What other medicines interact with Tiotropium?
MediHelp also lists interactions of Tiotropium with, for example, Indacaterol-glycopyrronium, Revefenacin, Umeclidinium. The full list is on the Tiotropium page.
Full monographs, dosing and an interaction checker in the MediHelp app
Open the complete reference, check multi-drug interactions and use dosing tools in the MediHelp app.
