Drug interactions
Bacitracin-neomycin-polymyxin + Rimabotulinumtoxinb
Severity: Minor
Bacitracin-neomycin-polymyxin and Rimabotulinumtoxinb: 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
Aminoglycosides and polymyxins can impair neuromuscular transmission and may add to the effect of botulinum toxin. This could cause excessive or spread-out muscle weakness. With topical use, systemic absorption is usually small, so the risk is mainly theoretical unless the preparation is applied to large or broken skin areas.
What this interaction means in plain words
Bacitracin-neomycin-polymyxin and Rimabotulinumtoxinb have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised.
Bacitracin-neomycin-polymyxin belongs to Anti Bacterial; Rimabotulinumtoxinb belongs to Musculoskeletal.
Why it happens
Additive impairment of neuromuscular transmission, with aminoglycoside and polymyxin presynaptic blockade of acetylcholine release.
What to do
For topical use on limited intact skin, no action is needed beyond awareness. If systemic or extensive use is required, monitor for excessive weakness, swallowing or breathing difficulty after the toxin injection.
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?
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Other interactions of Bacitracin-neomycin-polymyxin
- Allogeneic cultured keratinocytes / fibroblasts in bovine collagen + Bacitracin-neomycin-polymyxin Major
- Atracurium + Bacitracin-neomycin-polymyxin Major
- Bacitracin-neomycin-polymyxin + Capreomycin Major
- Bacitracin-neomycin-polymyxin + Cidofovir Major
- Bacitracin-neomycin-polymyxin + Cisatracurium Major
- Bacitracin-neomycin-polymyxin + Pancuronium Major
Other interactions of Rimabotulinumtoxinb
- Amikacin + Rimabotulinumtoxinb Moderate
- Amitriptyline + Rimabotulinumtoxinb Moderate
- Atracurium + Rimabotulinumtoxinb Moderate
- Atropine + Rimabotulinumtoxinb Moderate
- Baclofen + Rimabotulinumtoxinb Moderate
- Benztropine + Rimabotulinumtoxinb Moderate
Frequently asked questions
Can I take Bacitracin-neomycin-polymyxin with Rimabotulinumtoxinb?
MediHelp rates the interaction as minor. Bacitracin-neomycin-polymyxin and Rimabotulinumtoxinb have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised. Aminoglycosides and polymyxins can impair neuromuscular transmission and may add to the effect of botulinum toxin. This could cause excessive or spread-out muscle weakness. With topical use, systemic absorption is usually small, so the risk is mainly theoretical unless the preparation is applied to large or broken skin areas.
How serious is the interaction between Bacitracin-neomycin-polymyxin and Rimabotulinumtoxinb?
MediHelp rates it minor, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: For topical use on limited intact skin, no action is needed beyond awareness. If systemic or extensive use is required, monitor for excessive weakness, swallowing or breathing difficulty after the toxin injection.
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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