Drug interactions
Maprotiline + OnabotulinumtoxinA
Severity: Minor
Maprotiline and OnabotulinumtoxinA: minor 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 may add to the effects of botulinum toxin. This could in theory cause excess local or distant muscle weakness and worsen systemic anticholinergic effects. Clinical reports are limited.
What this interaction means in plain words
Maprotiline and OnabotulinumtoxinA have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised.
Maprotiline belongs to Central Nervous System; OnabotulinumtoxinA belongs to Musculoskeletal.
Why it happens
Additive pharmacodynamic effects on cholinergic neuromuscular transmission and anticholinergic activity.
What to do
Monitor for excessive weakness, swallowing or breathing difficulty, and anticholinergic effects after injection. Use the lowest effective toxin dose.
What to ask your pharmacist
- Is there anything I should notice while taking both?
- Do I need to tell my doctor at the next visit?
Pro+ members
Unlock the full page
Create an account and start a Pro+ trial to unlock the full management advice for Maprotiline and OnabotulinumtoxinA, 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 Maprotiline
- Arsenic trioxide + Maprotiline Contraindicated
- Disopyramide + Maprotiline Contraindicated
- Dofetilide + Maprotiline Contraindicated
- Ibutilide + Maprotiline Contraindicated
- Isocarboxazid + Maprotiline Contraindicated
- Maprotiline + Methylene blue Contraindicated
Other interactions of OnabotulinumtoxinA
Frequently asked questions
Can I take Maprotiline with OnabotulinumtoxinA?
MediHelp rates the interaction as minor. Maprotiline and OnabotulinumtoxinA have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised. Drugs with anticholinergic activity may add to the effects of botulinum toxin. This could in theory cause excess local or distant muscle weakness and worsen systemic anticholinergic effects. Clinical reports are limited.
How serious is the interaction between Maprotiline and OnabotulinumtoxinA?
MediHelp rates it minor, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Monitor for excessive weakness, swallowing or breathing difficulty, and anticholinergic effects after injection. Use the lowest effective toxin dose.
What other medicines interact with Maprotiline?
MediHelp also lists interactions of Maprotiline with, for example, Arsenic trioxide, Disopyramide, Dofetilide. The full list is on the Maprotiline 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.
