Drug interactions
Glycopyrronium + Huperzine a
Severity: Moderate
Glycopyrronium and Huperzine a: 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
Huperzine A is a cholinesterase inhibitor and so opposes the antimuscarinic action of glycopyrronium. Each may reduce the effectiveness of the other.
What this interaction means in plain words
Glycopyrronium and Huperzine a 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
Pharmacodynamic antagonism between acetylcholinesterase inhibition and muscarinic blockade.
What to do
Avoid combining if feasible. If both are used, monitor for loss of anticholinergic effect and for cholinergic symptoms.
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?
Pro+ members
Unlock the full page
Create an account and start a Pro+ trial to unlock the full management advice for Glycopyrronium and Huperzine a, 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 7 days on the web. No card needed.
Other interactions of Glycopyrronium
- Clozapine + Glycopyrronium Major
- Abobotulinumtoxina + Glycopyrronium Moderate
- Aclidinium + Glycopyrronium Moderate
- Amantadine + Glycopyrronium Moderate
- Amitriptyline + Glycopyrronium Moderate
- Amoxapine + Glycopyrronium Moderate
Frequently asked questions
Can I take Glycopyrronium with Huperzine a?
MediHelp rates the interaction as moderate. Glycopyrronium and Huperzine a 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. Huperzine A is a cholinesterase inhibitor and so opposes the antimuscarinic action of glycopyrronium. Each may reduce the effectiveness of the other.
How serious is the interaction between Glycopyrronium and Huperzine a?
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 combining if feasible. If both are used, monitor for loss of anticholinergic effect and for cholinergic symptoms.
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.
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.
