Drug interactions
Letibotulinumtoxina + Nortriptyline
Severity: Moderate
Letibotulinumtoxina and Nortriptyline: 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
Drugs with anticholinergic activity, such as nortriptyline, may add to the neuromuscular effects of botulinum toxin. This could lead to excessive muscle weakness and a greater burden of systemic anticholinergic effects.
What this interaction means in plain words
Letibotulinumtoxina and Nortriptyline 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 pharmacodynamic effects on cholinergic neuromuscular transmission, with nortriptyline contributing anticholinergic activity.
What to do
Monitor for generalized weakness, swallowing or breathing difficulty and anticholinergic effects after injection. Use the lowest effective toxin dose and reassess the antidepressant if symptoms 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?
Pro+ members
Unlock the full page
Create an account and start a Pro+ trial to unlock the full management advice for Letibotulinumtoxina and Nortriptyline, the additional notes, the evidence detail and the whole-prescription interaction checker.
- Full clinical management advice
- Additional notes
- Evidence detail
- Interaction checker for a whole prescription
Try Pro+ free for 14 days on the web. No card needed.
Other interactions of Nortriptyline
- Disopyramide + Nortriptyline Contraindicated
- Dofetilide + Nortriptyline Contraindicated
- Dronedarone + Nortriptyline Contraindicated
- Ibutilide + Nortriptyline Contraindicated
- Isocarboxazid + Nortriptyline Contraindicated
- Methylene blue + Nortriptyline Contraindicated
Frequently asked questions
Can I take Letibotulinumtoxina with Nortriptyline?
MediHelp rates the interaction as moderate. Letibotulinumtoxina and Nortriptyline 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. Drugs with anticholinergic activity, such as nortriptyline, may add to the neuromuscular effects of botulinum toxin. This could lead to excessive muscle weakness and a greater burden of systemic anticholinergic effects.
How serious is the interaction between Letibotulinumtoxina and Nortriptyline?
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. Use the lowest effective toxin dose and reassess the antidepressant if symptoms develop.
What other medicines interact with Nortriptyline?
MediHelp also lists interactions of Nortriptyline with, for example, Disopyramide, Dofetilide, Dronedarone. The full list is on the Nortriptyline page.
Full monographs, dosing and an interaction checker in the MediHelp app
Open the complete reference, check multi-drug interactions and use dosing tools in the MediHelp app.
