Drug interactions
Pancuronium + Physostigmine
Severity: Moderate
Pancuronium and Physostigmine: 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
Physostigmine inhibits cholinesterase and can antagonise nondepolarizing blockade, reducing pancuronium's effect. The result is unpredictable, and physostigmine may cause bradycardia and cholinergic effects.
What this interaction means in plain words
Pancuronium and Physostigmine 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
Cholinesterase inhibition increases acetylcholine at the neuromuscular junction and opposes competitive blockade.
What to do
Monitor neuromuscular function with train-of-four and adjust pancuronium dosing, and be ready to treat bradycardia or cholinergic effects.
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 Pancuronium with Physostigmine?
MediHelp rates the interaction as moderate. Pancuronium and Physostigmine 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. Physostigmine inhibits cholinesterase and can antagonise nondepolarizing blockade, reducing pancuronium's effect. The result is unpredictable, and physostigmine may cause bradycardia and cholinergic effects.
How serious is the interaction between Pancuronium and Physostigmine?
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 neuromuscular function with train-of-four and adjust pancuronium dosing, and be ready to treat bradycardia or cholinergic effects.
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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