Drug interactions
Bethanechol + Ipratropium
Severity: Moderate
Bethanechol and Ipratropium: 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
Ipratropium blocks muscarinic receptors, which directly opposes the cholinergic agonist action of bethanechol. Systemic exposure from inhaled ipratropium is low, so the clinical effect is usually limited, but bethanechol benefit on bladder or gut function may be reduced.
What this interaction means in plain words
Bethanechol and Ipratropium 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; Ipratropium belongs to Respiratory.
Why it happens
Pharmacodynamic antagonism at muscarinic receptors.
What to do
Monitor for reduced bethanechol response such as persistent urinary retention. Adjust the bethanechol dose if efficacy is lost.
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 Ipratropium
- Aclidinium + Ipratropium Moderate
- Benztropine + Ipratropium Moderate
- Cevimeline + Ipratropium Moderate
- Chlorpromazine + Ipratropium Moderate
- Clomipramine + Ipratropium Moderate
- Clozapine + Ipratropium Moderate
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 Ipratropium?
MediHelp rates the interaction as moderate. Bethanechol and Ipratropium 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. Ipratropium blocks muscarinic receptors, which directly opposes the cholinergic agonist action of bethanechol. Systemic exposure from inhaled ipratropium is low, so the clinical effect is usually limited, but bethanechol benefit on bladder or gut function may be reduced.
How serious is the interaction between Bethanechol and Ipratropium?
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 reduced bethanechol response such as persistent urinary retention. Adjust the bethanechol dose if efficacy is lost.
What other medicines interact with Ipratropium?
MediHelp also lists interactions of Ipratropium with, for example, Aclidinium, Benztropine, Cevimeline. The full list is on the Ipratropium page.
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