Drug interactions
Magnesium sulphate + Vecuronium
Severity: Moderate
Magnesium sulphate 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
Intravenous magnesium sulphate potentiates non-depolarizing neuromuscular blockers such as vecuronium. This results in faster onset, deeper block and a longer recovery time, raising the risk of residual paralysis and postoperative respiratory compromise.
What this interaction means in plain words
Magnesium sulphate 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.
Magnesium sulphate belongs to Cardiovascular; Vecuronium belongs to Musculoskeletal.
Why it happens
Magnesium inhibits acetylcholine release at the neuromuscular junction and stabilizes the postsynaptic membrane, producing additive blockade with vecuronium.
What to do
Reduce the vecuronium dose and guide dosing with quantitative train-of-four monitoring. Confirm adequate reversal before extubation in patients receiving magnesium.
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 Magnesium sulphate
- Amikacin + Magnesium sulphate Moderate
- Amphotericin b deoxycholate + Magnesium sulphate Moderate
- Atracurium + Magnesium sulphate Moderate
- Baloxavir marboxil + Magnesium sulphate Moderate
- Ciprofloxacin + Magnesium sulphate Moderate
- Cisatracurium + Magnesium sulphate Moderate
Other interactions of Vecuronium
Frequently asked questions
Can I take Magnesium sulphate with Vecuronium?
MediHelp rates the interaction as moderate. Magnesium sulphate 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. Intravenous magnesium sulphate potentiates non-depolarizing neuromuscular blockers such as vecuronium. This results in faster onset, deeper block and a longer recovery time, raising the risk of residual paralysis and postoperative respiratory compromise.
How serious is the interaction between Magnesium sulphate 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: Reduce the vecuronium dose and guide dosing with quantitative train-of-four monitoring. Confirm adequate reversal before extubation in patients receiving magnesium.
What other medicines interact with Magnesium sulphate?
MediHelp also lists interactions of Magnesium sulphate with, for example, Amikacin, Amphotericin b deoxycholate, Atracurium. The full list is on the Magnesium sulphate page.
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