Drug interactions
Bethanechol + Rivastigmine
Severity: Moderate
Bethanechol and Rivastigmine: 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
Rivastigmine inhibits cholinesterase and enhances cholinergic transmission, which adds to bethanechol's muscarinic agonism. This raises the risk of bradycardia, nausea, vomiting, diarrhea and bronchoconstriction.
What this interaction means in plain words
Bethanechol and Rivastigmine 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.
Bethanechol belongs to Gastrointestinal Tract; Rivastigmine belongs to Central Nervous System.
Why it happens
Additive cholinergic effect from muscarinic agonism plus cholinesterase inhibition.
What to do
Monitor heart rate and GI and respiratory symptoms; reduce the bethanechol dose if cholinergic effects develop.
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 Bethanechol
- Bethanechol + Darifenacin Major
- Bethanechol + Fesoterodine Major
- Bethanechol + Oxybutynin Major
- Bethanechol + Physostigmine Major
- Amifampridine + Bethanechol Moderate
- Amitriptyline + Bethanechol Moderate
Other interactions of Rivastigmine
Frequently asked questions
Can I take Bethanechol with Rivastigmine?
MediHelp rates the interaction as moderate. Bethanechol and Rivastigmine 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. Rivastigmine inhibits cholinesterase and enhances cholinergic transmission, which adds to bethanechol's muscarinic agonism. This raises the risk of bradycardia, nausea, vomiting, diarrhea and bronchoconstriction.
How serious is the interaction between Bethanechol and Rivastigmine?
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 heart rate and GI and respiratory symptoms; reduce the bethanechol dose if cholinergic effects develop.
What other medicines interact with Bethanechol?
MediHelp also lists interactions of Bethanechol with, for example, Darifenacin, Fesoterodine, Oxybutynin. The full list is on the Bethanechol page.
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