Drug interactions
Rimabotulinumtoxinb + Solifenacin
Severity: Moderate
Rimabotulinumtoxinb and Solifenacin: 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
Botulinum toxin can spread systemically and cause generalized weakness and autonomic effects. Solifenacin's anticholinergic activity may add to dry mouth, swallowing difficulty and other systemic effects, which are common with type B toxin.
What this interaction means in plain words
Rimabotulinumtoxinb and Solifenacin 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.
Rimabotulinumtoxinb belongs to Musculoskeletal; Solifenacin belongs to Genitourinary.
Why it happens
Additive anticholinergic effects with cholinergic blockade from botulinum toxin.
What to do
Monitor for generalized weakness, dysphagia, breathing difficulty and anticholinergic symptoms after injection. Reduce or stop solifenacin if these occur.
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 Solifenacin
Other interactions of Rimabotulinumtoxinb
- Amikacin + Rimabotulinumtoxinb Moderate
- Amitriptyline + Rimabotulinumtoxinb Moderate
- Atracurium + Rimabotulinumtoxinb Moderate
- Atropine + Rimabotulinumtoxinb Moderate
- Baclofen + Rimabotulinumtoxinb Moderate
- Benztropine + Rimabotulinumtoxinb Moderate
Frequently asked questions
Can I take Rimabotulinumtoxinb with Solifenacin?
MediHelp rates the interaction as moderate. Rimabotulinumtoxinb and Solifenacin 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. Botulinum toxin can spread systemically and cause generalized weakness and autonomic effects. Solifenacin's anticholinergic activity may add to dry mouth, swallowing difficulty and other systemic effects, which are common with type B toxin.
How serious is the interaction between Rimabotulinumtoxinb and Solifenacin?
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, dysphagia, breathing difficulty and anticholinergic symptoms after injection. Reduce or stop solifenacin if these occur.
What other medicines interact with Solifenacin?
MediHelp also lists interactions of Solifenacin with, for example, Adagrasib, Amiodarone, Amisulpride. The full list is on the Solifenacin page.
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