Drug interactions
Colistin + Pancuronium
Severity: Major
Colistin and Pancuronium: major 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
Colistin (polymyxin E) has neuromuscular blocking effects and can markedly potentiate pancuronium. Prolonged paralysis and respiratory arrest are possible, and reversal with anticholinesterases or calcium may be incomplete.
What this interaction means in plain words
Colistin and Pancuronium can interact in a way that may be serious. Using them together is sometimes necessary, but it needs a deliberate decision by the prescriber, a plan for monitoring, and clear advice on the warning signs to watch for.
Colistin belongs to Anti Bacterial; Pancuronium belongs to Musculoskeletal.
Why it happens
Additive neuromuscular blockade, as colistin inhibits presynaptic acetylcholine release and has postsynaptic effects.
What to do
Avoid combined use where possible; if needed, reduce pancuronium dose and monitor with train-of-four. Ensure ventilatory support is available, especially in patients with renal impairment.
What to ask your pharmacist
- Does the benefit of taking both outweigh the risk in my case?
- Do I need any blood test, ECG or other check while on both?
- What early warning signs should I watch for, and what should I do if they appear?
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Other interactions of Pancuronium
Other interactions of Colistin
- Colistin + Polymyxin b Contraindicated
- Amikacin + Colistin Major
- Amphotericin b deoxycholate + Colistin Major
- Amphotericin b + Colistin Major
- Atracurium + Colistin Major
- Bacitracin + Colistin Major
Frequently asked questions
Can I take Colistin with Pancuronium?
MediHelp rates the interaction as major. Colistin and Pancuronium can interact in a way that may be serious. Using them together is sometimes necessary, but it needs a deliberate decision by the prescriber, a plan for monitoring, and clear advice on the warning signs to watch for. Colistin (polymyxin E) has neuromuscular blocking effects and can markedly potentiate pancuronium. Prolonged paralysis and respiratory arrest are possible, and reversal with anticholinesterases or calcium may be incomplete.
How serious is the interaction between Colistin and Pancuronium?
MediHelp rates it major, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Avoid combined use where possible; if needed, reduce pancuronium dose and monitor with train-of-four. Ensure ventilatory support is available, especially in patients with renal impairment.
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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