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Interactions médicamenteuses

Orphenadrin + Trihexyphenidyl

Gravité: Majeure

Orphenadrin and Trihexyphenidyl: major interaction.

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Résumé

Both are potent anticholinergics, so together they can produce excessive anticholinergic effects. Risks include confusion, hallucinations, urinary retention, constipation, hyperthermia and tachycardia.

Ce que signifie cette interaction, en termes simples

Orphenadrin and Trihexyphenidyl can interact in a way that may be serious. Using them together is sometimes necessary, but it needs a deliberate decision by the prescriber, a plan for monitoring, and clear advice on the warning signs to watch for.

Orphenadrin belongs to Musculoskeletal; Trihexyphenidyl belongs to Central Nervous System.

Niveau de preuve: Moderate

Pourquoi elle survient

Additive muscarinic receptor antagonism.

Conduite à tenir

Avoid using both where possible, particularly in older adults. If necessary, use the lowest doses and monitor for anticholinergic toxicity.

Questions à poser à votre pharmacien

  • Does the benefit of taking both outweigh the risk in my case?
  • Do I need any blood test, ECG or other check while on both?
  • What early warning signs should I watch for, and what should I do if they appear?

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

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Questions fréquentes

Can I take Orphenadrin with Trihexyphenidyl?

MediHelp rates the interaction as major. Orphenadrin and Trihexyphenidyl can interact in a way that may be serious. Using them together is sometimes necessary, but it needs a deliberate decision by the prescriber, a plan for monitoring, and clear advice on the warning signs to watch for. Both are potent anticholinergics, so together they can produce excessive anticholinergic effects. Risks include confusion, hallucinations, urinary retention, constipation, hyperthermia and tachycardia.

How serious is the interaction between Orphenadrin and Trihexyphenidyl?

MediHelp rates it major, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Avoid using both where possible, particularly in older adults. If necessary, use the lowest doses and monitor for anticholinergic toxicity.

What other medicines interact with Orphenadrin?

MediHelp also lists interactions of Orphenadrin with, for example, Alfentanil, Amobarbital, Benzhydrocodone / acetaminophen. The full list is on the Orphenadrin page.

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Ouvrez le référentiel complet, vérifiez les interactions entre plusieurs médicaments et utilisez les outils de posologie dans l'application MediHelp.

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