Drug interactions
Dexamethasone-neomycin-polymyxin + Letibotulinumtoxina
Severity: Moderate
Dexamethasone-neomycin-polymyxin and Letibotulinumtoxina: 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 neuromuscular blockade and may exaggerate the weakness caused by botulinum toxin. Neomycin absorption from topical otic/ophthalmic use is low, but it can be higher with a damaged tympanic membrane or broken skin.
What this interaction means in plain words
Dexamethasone-neomycin-polymyxin and Letibotulinumtoxina 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
Monitor for excessive muscle weakness, swallowing or breathing difficulty after injection. Avoid systemic or heavily absorbed aminoglycoside exposure around the time of treatment.
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?
Pro+ members
Unlock the full page
Create an account and start a Pro+ trial to unlock the full management advice for Dexamethasone-neomycin-polymyxin and Letibotulinumtoxina, the additional notes, the evidence detail and the whole-prescription interaction checker.
- Full clinical management advice
- Additional notes
- Evidence detail
- Interaction checker for a whole prescription
Try Pro+ free for 7 days on the web. No card needed.
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 Letibotulinumtoxina?
MediHelp rates the interaction as moderate. Dexamethasone-neomycin-polymyxin and Letibotulinumtoxina 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 neuromuscular blockade and may exaggerate the weakness caused by botulinum toxin. Neomycin absorption from topical otic/ophthalmic use is low, but it can be higher with a damaged tympanic membrane or broken skin.
How serious is the interaction between Dexamethasone-neomycin-polymyxin and Letibotulinumtoxina?
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 for excessive muscle weakness, swallowing or breathing difficulty after injection. Avoid systemic or heavily absorbed aminoglycoside exposure around the time of treatment.
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.
Full monographs, dosing and an interaction checker in the MediHelp app
Open the complete reference, check multi-drug interactions and use dosing tools in the MediHelp app.
