Drug interactions
Atropine + Glycopyrronium
Severity: Moderate
Atropine and Glycopyrronium: 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
Both drugs are antimuscarinic agents, so combining them adds to anticholinergic effects such as dry mouth, tachycardia, urinary retention, constipation, blurred vision and confusion. Older or frail patients are most vulnerable to these additive effects.
What this interaction means in plain words
Atropine and Glycopyrronium 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.
Atropine belongs to Miscellaneous; Glycopyrronium belongs to Respiratory.
Why it happens
Additive pharmacodynamic blockade of muscarinic acetylcholine receptors.
What to do
Avoid routine duplication of antimuscarinics and monitor heart rate, bowel and bladder function, and mental status if both are required. Reduce the dose of one agent if anticholinergic toxicity appears.
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 Glycopyrronium
- Clozapine + Glycopyrronium Major
- Abobotulinumtoxina + Glycopyrronium Moderate
- Aclidinium + Glycopyrronium Moderate
- Amantadine + Glycopyrronium Moderate
- Amitriptyline + Glycopyrronium Moderate
- Amoxapine + Glycopyrronium Moderate
Other interactions of Atropine
- Atropine + Eluxadoline Major
- Atropine + Henbane Major
- Atropine + Pramlintide Major
- Abobotulinumtoxina + Atropine Moderate
- Aclidinium + Atropine Moderate
- Amantadine + Atropine Moderate
Frequently asked questions
Can I take Atropine with Glycopyrronium?
MediHelp rates the interaction as moderate. Atropine and Glycopyrronium 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. Both drugs are antimuscarinic agents, so combining them adds to anticholinergic effects such as dry mouth, tachycardia, urinary retention, constipation, blurred vision and confusion. Older or frail patients are most vulnerable to these additive effects.
How serious is the interaction between Atropine and Glycopyrronium?
MediHelp rates it moderate, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Avoid routine duplication of antimuscarinics and monitor heart rate, bowel and bladder function, and mental status if both are required. Reduce the dose of one agent if anticholinergic toxicity appears.
What other medicines interact with Glycopyrronium?
MediHelp also lists interactions of Glycopyrronium with, for example, Clozapine, Abobotulinumtoxina, Aclidinium. The full list is on the Glycopyrronium page.
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