Drug interactions
Neostigmine + Tiotropium
Severity: Minor
Neostigmine and Tiotropium: 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
Neostigmine raises acetylcholine levels while tiotropium blocks muscarinic receptors, so their effects oppose one another. Tiotropium may reduce the muscarinic effects of neostigmine such as bradycardia, bronchoconstriction and increased secretions. The clinical significance is generally limited.
What this interaction means in plain words
Neostigmine and Tiotropium have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised.
Neostigmine belongs to Central Nervous System; Tiotropium belongs to Respiratory.
Why it happens
Pharmacodynamic antagonism between a cholinesterase inhibitor and a muscarinic antagonist.
What to do
No routine change is needed. Monitor heart rate and respiratory status when neostigmine is given, and check whether myasthenia symptom control is adequate.
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?
Pro+ members
Unlock the full page
Create an account and start a Pro+ trial to unlock the full management advice for Neostigmine 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
Other interactions of Neostigmine
Frequently asked questions
Can I take Neostigmine with Tiotropium?
MediHelp rates the interaction as minor. Neostigmine and Tiotropium have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised. Neostigmine raises acetylcholine levels while tiotropium blocks muscarinic receptors, so their effects oppose one another. Tiotropium may reduce the muscarinic effects of neostigmine such as bradycardia, bronchoconstriction and increased secretions. The clinical significance is generally limited.
How serious is the interaction between Neostigmine and Tiotropium?
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 change is needed. Monitor heart rate and respiratory status when neostigmine is given, and check whether myasthenia symptom control is adequate.
What other medicines interact with Tiotropium?
MediHelp also lists interactions of Tiotropium with, for example, Glycopyrrolate inhaled, Indacaterol-glycopyrronium, Revefenacin. 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.
