Drug interactions
Glycopyrrolate inhaled + Trospium
Severity: Moderate
Glycopyrrolate inhaled and Trospium: 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
Inhaled glycopyrrolate has limited but real systemic absorption, which can add to trospium's antimuscarinic effects. This may increase dry mouth, constipation, urinary retention and blurred vision.
What this interaction means in plain words
Glycopyrrolate inhaled and Trospium 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.
Why it happens
Additive antimuscarinic effects.
What to do
Monitor for urinary retention, constipation and narrow-angle glaucoma symptoms; reduce or stop one agent if anticholinergic effects emerge.
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 Trospium
- Clozapine + Trospium Major
- Pramlintide + Trospium Major
- Thioridazine + Trospium Major
- Trihexyphenidyl + Trospium Major
- Aclidinium + Trospium Moderate
- Amantadine + Trospium Moderate
Frequently asked questions
Can I take Glycopyrrolate inhaled with Trospium?
MediHelp rates the interaction as moderate. Glycopyrrolate inhaled and Trospium 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. Inhaled glycopyrrolate has limited but real systemic absorption, which can add to trospium's antimuscarinic effects. This may increase dry mouth, constipation, urinary retention and blurred vision.
How serious is the interaction between Glycopyrrolate inhaled and Trospium?
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 for urinary retention, constipation and narrow-angle glaucoma symptoms; reduce or stop one agent if anticholinergic effects emerge.
What other medicines interact with Trospium?
MediHelp also lists interactions of Trospium with, for example, Clozapine, Pramlintide, Thioridazine. The full list is on the Trospium page.
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