Drug interactions
Magnesium + Rapacuronium
Severity: Moderate
Magnesium 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, which can prolong paralysis and delay recovery. Rapacuronium has been withdrawn from most markets, but the effect is expected with this class.
What this interaction means in plain words
Magnesium 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 acetylcholine release and lowers motor endplate sensitivity, adding to non-depolarizing blockade.
What to do
Reduce the neuromuscular blocker dose and monitor with train-of-four. Ensure ventilatory support is available until full recovery.
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
- Ciprofloxacin + Magnesium Major
- Magnesium + Pancuronium Major
- Magnesium + Rocuronium Major
- Magnesium + Vecuronium Major
- Amikacin + Magnesium Moderate
- Amphotericin b deoxycholate + Magnesium Moderate
Frequently asked questions
Can I take Magnesium with Rapacuronium?
MediHelp rates the interaction as moderate. Magnesium 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, which can prolong paralysis and delay recovery. Rapacuronium has been withdrawn from most markets, but the effect is expected with this class.
How serious is the interaction between Magnesium 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 monitor with train-of-four. Ensure ventilatory support is available until full recovery.
What other medicines interact with Magnesium?
MediHelp also lists interactions of Magnesium with, for example, Ciprofloxacin, Pancuronium, Rocuronium. The full list is on the Magnesium page.
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