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Interactions médicamenteuses

Desvenlafaxine + Methylene blue

Gravité: Contre-indiquée

Desvenlafaxine and Methylene blue: contraindicated interaction.

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Résumé

Methylene blue inhibits MAO-A and can precipitate serotonin syndrome when given with desvenlafaxine. The reaction can be severe, with hyperthermia, neuromuscular hyperactivity, and altered mental status.

Ce que signifie cette interaction, en termes simples

Desvenlafaxine and Methylene blue are not normally used together. Taking them at the same time is expected to cause harm or make one of them unsafe, so a different medicine is usually chosen for one of the two.

Niveau de preuve: High

Pourquoi elle survient

MAO-A inhibition by methylene blue adds to serotonin and norepinephrine reuptake inhibition, causing excess serotonergic activity.

Conduite à tenir

Avoid the combination. If methylene blue is urgent, stop desvenlafaxine and monitor for serotonin syndrome for up to 2 weeks or until 24 hours after the last methylene blue dose, whichever comes first.

Questions à poser à votre pharmacien

  • Is there an alternative to one of these two medicines for me?
  • If both are essential, who is monitoring me and how often?
  • Which symptoms mean I should stop and seek help straight away?

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 Desvenlafaxine with Methylene blue?

MediHelp rates the interaction as contraindicated. Desvenlafaxine and Methylene blue are not normally used together. Taking them at the same time is expected to cause harm or make one of them unsafe, so a different medicine is usually chosen for one of the two. Methylene blue inhibits MAO-A and can precipitate serotonin syndrome when given with desvenlafaxine. The reaction can be severe, with hyperthermia, neuromuscular hyperactivity, and altered mental status.

How serious is the interaction between Desvenlafaxine and Methylene blue?

MediHelp rates it contraindicated, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Avoid the combination. If methylene blue is urgent, stop desvenlafaxine and monitor for serotonin syndrome for up to 2 weeks or until 24 hours after the last methylene blue dose, whichever comes first.

What other medicines interact with Desvenlafaxine?

MediHelp also lists interactions of Desvenlafaxine with, for example, Isocarboxazid, Phenelzine, Rasagiline. The full list is on the Desvenlafaxine page.

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