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Interações medicamentosas

Desvenlafaxine + Methylene blue

Gravidade: Contraindicada

Desvenlafaxine and Methylene blue: contraindicated interaction.

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Para profissionais de saúde — apenas referência. Esta página é um resumo breve, não é aconselhamento médico nem substitui a bula oficial ou o julgamento clínico. Verifique sempre antes de prescrever ou dispensar.

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Resumo

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.

O que esta interação significa em palavras 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.

Nível de evidência: High

Por que acontece

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

O que fazer

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.

O que perguntar ao farmacêutico

  • 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?

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Perguntas frequentes

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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