Drug interactions
Dexamethasone-neomycin-polymyxin + Prabotulinumtoxina
Severity: Moderate
Dexamethasone-neomycin-polymyxin and Prabotulinumtoxina: 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
Aminoglycosides such as neomycin can potentiate the neuromuscular blocking effect of botulinum toxin, leading to excessive weakness. With topical neomycin systemic absorption is low, so the risk is small, but it increases if the skin or mucosa is damaged or the product is used extensively.
What this interaction means in plain words
Dexamethasone-neomycin-polymyxin and Prabotulinumtoxina 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
Aminoglycosides impair presynaptic acetylcholine release, adding to botulinum toxin neuromuscular blockade.
What to do
Avoid concurrent use of systemic aminoglycosides where possible. Monitor for excessive muscle weakness, swallowing or breathing difficulty after injection.
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 Dexamethasone-neomycin-polymyxin
- Dexamethasone-neomycin-polymyxin + Ketorolac Major
- Dexamethasone-neomycin-polymyxin + Lapatinib Major
- Dexamethasone-neomycin-polymyxin + Levofloxacin Major
- Dexamethasone-neomycin-polymyxin + Mifepristone Major
- Dexamethasone-neomycin-polymyxin + Moxifloxacin Major
- Aldesleukin + Dexamethasone-neomycin-polymyxin Moderate
Frequently asked questions
Can I take Dexamethasone-neomycin-polymyxin with Prabotulinumtoxina?
MediHelp rates the interaction as moderate. Dexamethasone-neomycin-polymyxin and Prabotulinumtoxina 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. Aminoglycosides such as neomycin can potentiate the neuromuscular blocking effect of botulinum toxin, leading to excessive weakness. With topical neomycin systemic absorption is low, so the risk is small, but it increases if the skin or mucosa is damaged or the product is used extensively.
How serious is the interaction between Dexamethasone-neomycin-polymyxin and Prabotulinumtoxina?
MediHelp rates it moderate, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Avoid concurrent use of systemic aminoglycosides where possible. Monitor for excessive muscle weakness, swallowing or breathing difficulty after injection.
What other medicines interact with Dexamethasone-neomycin-polymyxin?
MediHelp also lists interactions of Dexamethasone-neomycin-polymyxin with, for example, Ketorolac, Lapatinib, Levofloxacin. The full list is on the Dexamethasone-neomycin-polymyxin page.
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