Drug interactions
Lofepramine + Pancuronium
Severity: Moderate
Lofepramine and Pancuronium: 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
Tricyclic antidepressants may provoke arrhythmias in the presence of pancuronium, which causes tachycardia through vagolytic and sympathomimetic effects. Lofepramine has weaker anticholinergic activity than other tricyclics, so the risk is lower.
What this interaction means in plain words
Lofepramine and Pancuronium 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 effects on heart rate and conduction from pancuronium's vagolytic action and the tricyclic's anticholinergic and noradrenaline reuptake effects.
What to do
Monitor ECG and heart rate during anesthesia and treat significant arrhythmias promptly.
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 Pancuronium
Frequently asked questions
Can I take Lofepramine with Pancuronium?
MediHelp rates the interaction as moderate. Lofepramine and Pancuronium 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. Tricyclic antidepressants may provoke arrhythmias in the presence of pancuronium, which causes tachycardia through vagolytic and sympathomimetic effects. Lofepramine has weaker anticholinergic activity than other tricyclics, so the risk is lower.
How serious is the interaction between Lofepramine and Pancuronium?
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 ECG and heart rate during anesthesia and treat significant arrhythmias promptly.
What other medicines interact with Pancuronium?
MediHelp also lists interactions of Pancuronium with, for example, Amikacin, Bacitracin-neomycin-polymyxin, Capreomycin. The full list is on the Pancuronium page.
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