Drug interactions
Daxibotulinumtoxina + Fesoterodine
Severity: Moderate
Daxibotulinumtoxina and Fesoterodine: 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
Anticholinergic drugs may add to the effects of botulinum toxin and may worsen systemic weakness or anticholinergic symptoms after distant spread of toxin. The risk is mostly theoretical at usual doses.
What this interaction means in plain words
Daxibotulinumtoxina and Fesoterodine 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 antagonism of cholinergic transmission, with toxin blocking acetylcholine release and fesoterodine blocking muscarinic receptors.
What to do
Monitor for generalized weakness, swallowing or breathing difficulty and anticholinergic effects after injection, and consider stopping fesoterodine if they develop.
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 Fesoterodine
Frequently asked questions
Can I take Daxibotulinumtoxina with Fesoterodine?
MediHelp rates the interaction as moderate. Daxibotulinumtoxina and Fesoterodine 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. Anticholinergic drugs may add to the effects of botulinum toxin and may worsen systemic weakness or anticholinergic symptoms after distant spread of toxin. The risk is mostly theoretical at usual doses.
How serious is the interaction between Daxibotulinumtoxina and Fesoterodine?
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 generalized weakness, swallowing or breathing difficulty and anticholinergic effects after injection, and consider stopping fesoterodine if they develop.
What other medicines interact with Fesoterodine?
MediHelp also lists interactions of Fesoterodine with, for example, Bethanechol, Clozapine, Levoketoconazole. The full list is on the Fesoterodine page.
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