Drug interactions
Bethanechol + Echothiophate iodide
Severity: Moderate
Bethanechol and Echothiophate iodide: 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
Echothiophate is an irreversible cholinesterase inhibitor that raises acetylcholine levels, which can add to the direct muscarinic stimulation of bethanechol. Although applied to the eye, systemic absorption can occur and cholinergic toxicity such as bradycardia, bronchospasm and gastrointestinal hypermotility is possible.
What this interaction means in plain words
Bethanechol and Echothiophate iodide 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
Additive cholinergic stimulation: direct muscarinic agonism plus inhibition of acetylcholine breakdown.
What to do
Monitor for systemic cholinergic effects, especially heart rate and respiratory status. Reduce or stop bethanechol if toxicity develops.
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
Frequently asked questions
Can I take Bethanechol with Echothiophate iodide?
MediHelp rates the interaction as moderate. Bethanechol and Echothiophate iodide 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. Echothiophate is an irreversible cholinesterase inhibitor that raises acetylcholine levels, which can add to the direct muscarinic stimulation of bethanechol. Although applied to the eye, systemic absorption can occur and cholinergic toxicity such as bradycardia, bronchospasm and gastrointestinal hypermotility is possible.
How serious is the interaction between Bethanechol and Echothiophate iodide?
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 for systemic cholinergic effects, especially heart rate and respiratory status. Reduce or stop bethanechol if toxicity develops.
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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