Drug interactions
Protriptyline + Vecuronium
Severity: Minor
Protriptyline and Vecuronium: 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
Protriptyline is a tricyclic antidepressant with anticholinergic and arrhythmogenic properties. Tricyclics given with neuromuscular blockers during anesthesia have been associated with arrhythmias and blood pressure changes, but there is no robust evidence of a clinically important effect on blockade.
What this interaction means in plain words
Protriptyline and Vecuronium have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised.
Why it happens
The mechanism is not well established; additive autonomic and cardiac effects of the tricyclic are possible, with little direct effect on nicotinic blockade.
What to do
Monitor ECG and hemodynamics during anesthesia and use train-of-four monitoring to guide vecuronium dosing.
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 Protriptyline and Vecuronium, 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 7 days on the web. No card needed.
Other interactions of Vecuronium
Frequently asked questions
Can I take Protriptyline with Vecuronium?
MediHelp rates the interaction as minor. Protriptyline and Vecuronium have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised. Protriptyline is a tricyclic antidepressant with anticholinergic and arrhythmogenic properties. Tricyclics given with neuromuscular blockers during anesthesia have been associated with arrhythmias and blood pressure changes, but there is no robust evidence of a clinically important effect on blockade.
How serious is the interaction between Protriptyline and Vecuronium?
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 ECG and hemodynamics during anesthesia and use train-of-four monitoring to guide vecuronium dosing.
What other medicines interact with Vecuronium?
MediHelp also lists interactions of Vecuronium with, for example, Amikacin, Bacitracin-neomycin-polymyxin, Capreomycin. The full list is on the Vecuronium 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.
