Drug interactions
Bethanechol + Orphenadrine
Severity: Moderate
Bethanechol and Orphenadrine: 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
Orphenadrine has substantial anticholinergic activity and can reduce the effect of bethanechol. Urinary retention from orphenadrine may persist despite treatment.
What this interaction means in plain words
Bethanechol and Orphenadrine 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
Antimuscarinic activity of orphenadrine opposes bethanechol agonism.
What to do
Monitor for reduced bethanechol response. Consider a non-anticholinergic muscle relaxant if retention persists.
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 Orphenadrine?
MediHelp rates the interaction as moderate. Bethanechol and Orphenadrine 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. Orphenadrine has substantial anticholinergic activity and can reduce the effect of bethanechol. Urinary retention from orphenadrine may persist despite treatment.
How serious is the interaction between Bethanechol and Orphenadrine?
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. Consider a non-anticholinergic muscle relaxant if retention persists.
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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