Drug interactions
Dicyclomine + Neostigmine
Severity: Moderate
Dicyclomine and Neostigmine: 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
Neostigmine increases acetylcholine at muscarinic receptors while dicyclomine blocks them, so each reduces the effect of the other. Neostigmine's effects on gut and bladder motility may be blunted by dicyclomine.
What this interaction means in plain words
Dicyclomine and Neostigmine 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.
Dicyclomine belongs to Respiratory; Neostigmine belongs to Central Nervous System.
Why it happens
Pharmacodynamic antagonism between a cholinesterase inhibitor and a muscarinic antagonist.
What to do
Monitor for loss of neostigmine effect, for example in myasthenia gravis, and for changes in GI or bladder function. Adjust doses based on clinical response.
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 Dicyclomine
- Clozapine + Dicyclomine Major
- Dicyclomine + Henbane Major
- Dicyclomine + Imipramine Major
- Dicyclomine + Pramlintide Major
- Abobotulinumtoxina + Dicyclomine Moderate
- Aclidinium + Dicyclomine Moderate
Other interactions of Neostigmine
Frequently asked questions
Can I take Dicyclomine with Neostigmine?
MediHelp rates the interaction as moderate. Dicyclomine and Neostigmine 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. Neostigmine increases acetylcholine at muscarinic receptors while dicyclomine blocks them, so each reduces the effect of the other. Neostigmine's effects on gut and bladder motility may be blunted by dicyclomine.
How serious is the interaction between Dicyclomine and Neostigmine?
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 loss of neostigmine effect, for example in myasthenia gravis, and for changes in GI or bladder function. Adjust doses based on clinical response.
What other medicines interact with Dicyclomine?
MediHelp also lists interactions of Dicyclomine with, for example, Clozapine, Henbane, Imipramine. The full list is on the Dicyclomine page.
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