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Drug interactions

Bacitracin-neomycin-polymyxin + Rocuronium

Severity: Major

Bacitracin-neomycin-polymyxin and Rocuronium: 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

Polymyxin B and neomycin can potentiate rocuronium's neuromuscular blockade. This may prolong paralysis and delay recovery of spontaneous breathing. The risk is mainly with systemic or irrigation use, not small topical areas.

What this interaction means in plain words

Bacitracin-neomycin-polymyxin and Rocuronium 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.

Bacitracin-neomycin-polymyxin belongs to Anti Bacterial; Rocuronium belongs to Musculoskeletal.

Evidence level: Moderate

Why it happens

Additive pharmacodynamic neuromuscular blockade through reduced presynaptic acetylcholine release and postsynaptic receptor effects.

What to do

Avoid systemic, irrigation or large-area combination antibiotic exposure during neuromuscular blockade where possible. If used, monitor neuromuscular function with train-of-four and ensure ventilatory support is available.

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?

Bring a full list of your medicines, including over-the-counter products, supplements and herbal remedies, to every pharmacy visit.

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Frequently asked questions

Can I take Bacitracin-neomycin-polymyxin with Rocuronium?

MediHelp rates the interaction as major. Bacitracin-neomycin-polymyxin and Rocuronium 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. Polymyxin B and neomycin can potentiate rocuronium's neuromuscular blockade. This may prolong paralysis and delay recovery of spontaneous breathing. The risk is mainly with systemic or irrigation use, not small topical areas.

How serious is the interaction between Bacitracin-neomycin-polymyxin and Rocuronium?

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 systemic, irrigation or large-area combination antibiotic exposure during neuromuscular blockade where possible. If used, monitor neuromuscular function with train-of-four and ensure ventilatory support is available.

What other medicines interact with Bacitracin-neomycin-polymyxin?

MediHelp also lists interactions of Bacitracin-neomycin-polymyxin with, for example, Allogeneic cultured keratinocytes / fibroblasts in bovine collagen, Atracurium, Capreomycin. The full list is on the Bacitracin-neomycin-polymyxin page.

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