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Drug interactions

Orphenadrine + Pancuronium

Severity: Moderate

Orphenadrine and Pancuronium: 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

Orphenadrine has anticholinergic activity and may add to pancuronium's vagolytic effect, increasing the risk of tachycardia. Orphenadrine can also cause muscle relaxation and sedation, which may be additive.

What this interaction means in plain words

Orphenadrine and Pancuronium 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.

Evidence level: Low

Why it happens

Additive antimuscarinic effects, with possible additional central muscle-relaxant effects.

What to do

Monitor heart rate, ECG and neuromuscular recovery, and consider withholding orphenadrine before elective procedures.

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?

Bring a full list of your medicines, including over-the-counter products, supplements and herbal remedies, to every pharmacy visit.

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Frequently asked questions

Can I take Orphenadrine with Pancuronium?

MediHelp rates the interaction as moderate. Orphenadrine and Pancuronium 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. Orphenadrine has anticholinergic activity and may add to pancuronium's vagolytic effect, increasing the risk of tachycardia. Orphenadrine can also cause muscle relaxation and sedation, which may be additive.

How serious is the interaction between Orphenadrine and Pancuronium?

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 heart rate, ECG and neuromuscular recovery, and consider withholding orphenadrine before elective procedures.

What other medicines interact with Pancuronium?

MediHelp also lists interactions of Pancuronium with, for example, Amikacin, Bacitracin-neomycin-polymyxin, Capreomycin. The full list is on the Pancuronium 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.

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