Drug interactions
Bethanechol + Galantamine
Severity: Moderate
Bethanechol and Galantamine: 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
Galantamine inhibits acetylcholinesterase and enhances cholinergic signalling, adding to bethanechol's direct muscarinic agonism. Excess cholinergic stimulation may cause bradycardia, GI upset, sweating and bronchoconstriction.
What this interaction means in plain words
Bethanechol and Galantamine 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; Galantamine belongs to Central Nervous System.
Why it happens
Additive cholinergic effect from muscarinic agonism plus cholinesterase inhibition.
What to do
Monitor heart rate and cholinergic adverse effects; lower the bethanechol dose if they occur.
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 Galantamine
- Galantamine + Memantine-donepezil Major
- Galantamine + Physostigmine Major
- Galantamine + Ponesimod Major
- Galantamine + Rivastigmine Major
- Amifampridine + Galantamine Moderate
- Amiodarone + Galantamine Moderate
Frequently asked questions
Can I take Bethanechol with Galantamine?
MediHelp rates the interaction as moderate. Bethanechol and Galantamine 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. Galantamine inhibits acetylcholinesterase and enhances cholinergic signalling, adding to bethanechol's direct muscarinic agonism. Excess cholinergic stimulation may cause bradycardia, GI upset, sweating and bronchoconstriction.
How serious is the interaction between Bethanechol and Galantamine?
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 cholinergic adverse effects; lower the bethanechol dose if they occur.
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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