Drug interactions
Cyclobenzaprine + Dicyclomine
Severity: Moderate
Cyclobenzaprine and Dicyclomine: 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
Cyclobenzaprine is structurally related to tricyclic antidepressants and has anticholinergic activity. With dicyclomine it can cause additive dry mouth, constipation, urinary retention, blurred vision, drowsiness and confusion.
What this interaction means in plain words
Cyclobenzaprine and Dicyclomine 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.
Cyclobenzaprine belongs to Musculoskeletal; Dicyclomine belongs to Respiratory.
Why it happens
Additive muscarinic receptor antagonism.
What to do
Monitor for anticholinergic toxicity and sedation, and avoid in older patients or those with urinary retention or narrow-angle glaucoma where possible.
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 Cyclobenzaprine
- Cyclobenzaprine + Isocarboxazid Contraindicated
- Cyclobenzaprine + Linezolid Contraindicated
- Cyclobenzaprine + Phenelzine Contraindicated
- Cyclobenzaprine + Safinamide Contraindicated
- Cyclobenzaprine + Selegiline Contraindicated
- Cyclobenzaprine + Selegiline transdermal Contraindicated
Frequently asked questions
Can I take Cyclobenzaprine with Dicyclomine?
MediHelp rates the interaction as moderate. Cyclobenzaprine and Dicyclomine 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. Cyclobenzaprine is structurally related to tricyclic antidepressants and has anticholinergic activity. With dicyclomine it can cause additive dry mouth, constipation, urinary retention, blurred vision, drowsiness and confusion.
How serious is the interaction between Cyclobenzaprine and Dicyclomine?
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 anticholinergic toxicity and sedation, and avoid in older patients or those with urinary retention or narrow-angle glaucoma where possible.
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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