Drug interactions
Amitriptyline + Rimabotulinumtoxinb
Severity: Moderate
Amitriptyline and Rimabotulinumtoxinb: 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 such as amitriptyline may add to the effects of botulinum toxin. This could increase neuromuscular weakness and systemic anticholinergic effects such as dry mouth and dysphagia.
What this interaction means in plain words
Amitriptyline and Rimabotulinumtoxinb 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.
Amitriptyline belongs to Central Nervous System; Rimabotulinumtoxinb belongs to Musculoskeletal.
Why it happens
Additive anticholinergic and neuromuscular-blocking pharmacodynamic effects.
What to do
Monitor for excessive muscle weakness, swallowing or breathing difficulty, and anticholinergic symptoms after injection. Consider the lowest effective doses of both agents.
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 Amitriptyline
- Amitriptyline + Isocarboxazid Contraindicated
- Amitriptyline + Methylene blue Contraindicated
- Amitriptyline + Phenelzine Contraindicated
- Amitriptyline + Pimozide Contraindicated
- Amitriptyline + Procarbazine Contraindicated
- Amitriptyline + Safinamide Contraindicated
Other interactions of Rimabotulinumtoxinb
- Amikacin + Rimabotulinumtoxinb Moderate
- Atracurium + Rimabotulinumtoxinb Moderate
- Atropine + Rimabotulinumtoxinb Moderate
- Baclofen + Rimabotulinumtoxinb Moderate
- Benztropine + Rimabotulinumtoxinb Moderate
- Brompheniramine + Rimabotulinumtoxinb Moderate
Frequently asked questions
Can I take Amitriptyline with Rimabotulinumtoxinb?
MediHelp rates the interaction as moderate. Amitriptyline and Rimabotulinumtoxinb 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 such as amitriptyline may add to the effects of botulinum toxin. This could increase neuromuscular weakness and systemic anticholinergic effects such as dry mouth and dysphagia.
How serious is the interaction between Amitriptyline and Rimabotulinumtoxinb?
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 excessive muscle weakness, swallowing or breathing difficulty, and anticholinergic symptoms after injection. Consider the lowest effective doses of both agents.
What other medicines interact with Amitriptyline?
MediHelp also lists interactions of Amitriptyline with, for example, Isocarboxazid, Methylene blue, Phenelzine. The full list is on the Amitriptyline page.
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