Drug interactions
Neomycin po + Vecuronium
Severity: Moderate
Neomycin po and Vecuronium: 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
Oral neomycin can be absorbed in small amounts, especially with impaired gut mucosa or renal impairment, and aminoglycosides have intrinsic neuromuscular blocking activity. This can prolong or intensify vecuronium paralysis and delay recovery of spontaneous breathing, with a risk of apnea.
What this interaction means in plain words
Neomycin po and Vecuronium 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 reduce presynaptic acetylcholine release and postsynaptic sensitivity, adding to nondepolarizing neuromuscular blockade.
What to do
Monitor neuromuscular function with train-of-four and ensure ventilatory support is available until full recovery. Reduce vecuronium dosing as needed and be especially careful in renal impairment or bowel disease.
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 Vecuronium
Frequently asked questions
Can I take Neomycin po with Vecuronium?
MediHelp rates the interaction as moderate. Neomycin po and Vecuronium 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. Oral neomycin can be absorbed in small amounts, especially with impaired gut mucosa or renal impairment, and aminoglycosides have intrinsic neuromuscular blocking activity. This can prolong or intensify vecuronium paralysis and delay recovery of spontaneous breathing, with a risk of apnea.
How serious is the interaction between Neomycin po and Vecuronium?
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 neuromuscular function with train-of-four and ensure ventilatory support is available until full recovery. Reduce vecuronium dosing as needed and be especially careful in renal impairment or bowel disease.
What other medicines interact with Vecuronium?
MediHelp also lists interactions of Vecuronium with, for example, Amikacin, Bacitracin-neomycin-polymyxin, Capreomycin. The full list is on the Vecuronium page.
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