Drug interactions
Magnesium sulphate + Rapacuronium
Severity: Moderate
Magnesium sulphate and Rapacuronium: 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
Parenteral magnesium sulfate potentiates non-depolarizing neuromuscular blockers, giving a faster onset, deeper block and prolonged recovery. This can delay return of spontaneous respiration after surgery.
What this interaction means in plain words
Magnesium sulphate and Rapacuronium 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
Magnesium reduces presynaptic acetylcholine release and decreases postsynaptic sensitivity at the neuromuscular junction, adding to the competitive blockade.
What to do
Reduce the neuromuscular blocker dose and titrate with quantitative train-of-four monitoring. Ensure full recovery of neuromuscular function before extubation.
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
Frequently asked questions
Can I take Magnesium sulphate with Rapacuronium?
MediHelp rates the interaction as moderate. Magnesium sulphate and Rapacuronium 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. Parenteral magnesium sulfate potentiates non-depolarizing neuromuscular blockers, giving a faster onset, deeper block and prolonged recovery. This can delay return of spontaneous respiration after surgery.
How serious is the interaction between Magnesium sulphate and Rapacuronium?
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 neuromuscular blocker dose and titrate with quantitative train-of-four monitoring. Ensure full recovery of neuromuscular function before extubation.
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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