Drug interactions
Glycopyrrolate + Metformin
Severity: Minor
Glycopyrrolate and Metformin: minor 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
Anticholinergic drugs such as glycopyrrolate slow gastric emptying and gut motility, which may increase metformin absorption and exposure. The clinical relevance is uncertain, but higher exposure could increase gastrointestinal effects.
What this interaction means in plain words
Glycopyrrolate and Metformin have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised.
Glycopyrrolate belongs to Respiratory; Metformin belongs to Endocrine.
Why it happens
Reduced gastrointestinal motility may prolong metformin absorption, but the mechanism is not firmly established.
What to do
No routine adjustment is required. Monitor for metformin adverse effects and consider a dose reduction if they develop.
What to ask your pharmacist
- Is there anything I should notice while taking both?
- Do I need to tell my doctor at the next visit?
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Other interactions of Metformin
Other interactions of Glycopyrrolate
- Glycopyrrolate + Potassium chloride Major
- Amitriptyline + Glycopyrrolate Moderate
- Atropine + Glycopyrrolate Moderate
- Bethanechol + Glycopyrrolate Moderate
- Chlorpromazine + Glycopyrrolate Moderate
- Clomipramine + Glycopyrrolate Moderate
Frequently asked questions
Can I take Glycopyrrolate with Metformin?
MediHelp rates the interaction as minor. Glycopyrrolate and Metformin have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised. Anticholinergic drugs such as glycopyrrolate slow gastric emptying and gut motility, which may increase metformin absorption and exposure. The clinical relevance is uncertain, but higher exposure could increase gastrointestinal effects.
How serious is the interaction between Glycopyrrolate and Metformin?
MediHelp rates it minor, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: No routine adjustment is required. Monitor for metformin adverse effects and consider a dose reduction if they develop.
What other medicines interact with Metformin?
MediHelp also lists interactions of Metformin with, for example, Contrast media, Diatrizoate meglumine / diatrizoate, Diatrizoate. The full list is on the Metformin page.
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